#ShellScriptingNotes

============================[Actual commands]=========================================================

Create dummy files in a directory:

$ for ((i=1; i<=100; i++)); do echo "this system sux $i" >> "NewFiles_Season_1_Episode_$i.mkv"; done

$ for i in {1..6}; do echo "hello x $i" >> NewFiles_Season_1_Episode_${i}.mkv; done

Include leading '0' for single numbers:

$ for i in 0{1..9} {10..15}; do echo "this system sux $i" >> "A Pretty Good Program s01 e$i British TV Show.mkv"; done

Create 20 picture files where count starts from 300

num=300; for ((i=1; i<=20; i++)); do echo "test photo file $i" >> "DSC$(printf '%04d' $num).jpg"; ((num++)); done

Create dummy files in a directory with a date stamp:

$ now=$(date +"%m_%d_%Y"); for i in {1..6}; do echo "hello x $i" >> NewFiles_${now}_Season_1_Episode_${i}.mkv; done

$ now=$(date +"%Y%m%d"); for i in {1..100}; do echo "hello x $i" >> NewFiles_${now}_Season_1_Episode_${i}.mkv; done

Changing previous filename with sequential numbers:

$ num=1; for i in *; do mv "$i" "$(printf '%04d' $num).${i#*.}"; ((num++)); done

$ num=1; for i in *; do mv "$i" "$(printf '%04d' $num).${i}"; ((num++)); done

Changing filenames for renaming photo's:

$ num=1; for i in *; do mv "$i" "$(printf '%04d' $num).DSC.${i#*.}"; ((num++)); done

$ now=$(date +"%m_%d_%Y"); num=1; for i in *; do mv "$i" "$(printf '%04d' $num)-DSC-${now}-Germany.${i#*.}"; ((num++)); done

Remove first "3" character from filenames;

$ for i in *; do echo $i "${i:3}"; done

$ for i in *; do mv $i "${i:3}"; done

$ for i in $(ls -v); do mv $i "${i:3}"; done

Remove 1st "5" characters from filename:

$ for i in $(ls -v); do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

$ for i in $(ls -v); do mv $i $(echo $i | sed 's/^.\{5\}//g'); done

Remove 1st "5" characters from filename:

$ for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c6-`; done

$ for i in $(ls -v); do mv $i `echo $i | cut -c6-`; done

Using 'sed' to remove the first _ character in a filename:

$ for i in * ; do echo -e $i \\t $(echo $i |sed 's/_//'); done

$ for i in * ; do mv $i $(echo $i |sed 's/_//'); done

Using 'sed' to remove the first _ and preceding character in a filename:

$ for i in * ; do echo -e $i \\t $(echo $i |sed 's/._//'); done

$ for i in * ; do mv $i $(echo $i |sed 's/._//'); done

Using 'sed' to remove the first _ and preceding 2 characters in a filename:

$ for i in * ; do echo -e $i \\t $(echo $i |sed 's/.._//'); done

$ for i in * ; do mv $i $(echo $i |sed 's/.._//'); done

Using 'sed' to remove and replace:

$ for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/_/-/'); done

$ for i in $(ls -v) ; do mv $i $(echo $i |sed 's/_/-/'); done

Remove and replace the word "Season" with "Series" in a filename:

$ for i in $(ls -v) ; do mv $i $(echo $i |sed 's/Season/Series/'); done

Remove & replace 'all' (//) characters in a file:

$ for i in $(ls -v); do echo -e "$i" \\t "${i//_/ }"; done

$ for i in $(ls -v); do mv "$i" "${i//_/ }"; done

Adding string to beginning of all files:

$ for i in *; do mv "$i" "prefix_$i"; done;

$ for file in *; do mv $file new.${file%%}; done

$ for i in *; do mv "$i" "$(echo $i | sed 's/^/Prepend\ text\ \-\ /')"; done;

Adding string to end of filename, before extension:

$ for i in *.mkv; do mv $i $(printf '%s\n' ${i%.mkv}_newstring.mkv); done

Adding string to end of filename, after extension:

$ for i in *; do mv $i ${i}-old_version; done

Rename all files in a directory to a 4 digit sequential increasing numbers:

$ num=1; for i in *; do mv "$i" "$(printf '%04d' $num).${i#*.}"; ((num++)); done

$ count=1; for i in $(ls -v); do mv $i "${count} $i"; ((count++)); done

display all files in a directory starting with c or p;

$ for i in [cp]*; do echo $i; done

For loop with two parameters ($1 and $2) in each [list] elements:

$ for planet in "Mercury 36" "Venus 67" "Earth 93" "Mars 142"; do set -- $planet; echo "$1 is $2,000,000 miles from the sun" ; done

Operating on a parameterized file list

set $ filename="*txt"

$ for i in $filename; do echo "Contents of $i"; echo "---"; cat "$i"; echo; done

Other Examples:

$ for planet in "Mer 36" "Ven 67"; do echo $planet; done

$ for planet in "Mer 36" "Ven 67"; do set -- $planet; done

$ for planet in "Mer 36" "Ven 67"; do set -- $planet echo "$1 $200,000 miles from the sun" ; done

$ for planet in "Mer 36" "Ven 67"; do set -- $planet; echo "$1 $200,000 miles from the sun" ; done; done

$ for planet in "Mer 36" "Ven 67"; do set -- $planet; echo "$1 $200,000 miles from the sun" ; done

$ for planet in "Mer 36" "Ven 67" "Ear 93" "Mars 142"; do set -- $planet; echo "$1 $2,000,000 miles from the sun" ; done

$ for planet in "Mer 36" "Ven 67" "Ear 93" "Mars 142"; do set -- $planet; echo "$1 is $2,000,000 miles from the sun" ; done

$ for planet in "Mercury 36" "Venus 67" "Earth 93" "Mars 142"; do set -- $planet; echo "$1 is $2,000,000 miles from the sun" ; done

Nested for loops:

$ for i in {0..3}; do for j in {0..9}; do echo -n \($i, $j\); echo Is today the $i$j \?; done; done

Changing Case:

First, rename all files to lower-case:

$ rename 'y/A-Z/a-z/' *

Second, make the first letter of each word Upper Case:

$ rename 's/(^|[\s_-])([a-z])/$1\u$2/g' *

-------GOOD----------------------------------

Create files with sequential numbers with leading 0's; 01-09

$ for i in 0{1..9} {10..15}; do echo "this system sux $i" >> "A Pretty Good Program s01 e$i British TV Show.mkv"; done

Add "prefix_" to the beginnng of a filename:

$ for i in *.mkv; do mv "$i" "prefix_$i"; done

Add "_suffix" to the end of a filename:

$ for i in *.mkv; do mv "${i}" "${i%.mkv}_suffix.mkv"; done

Rename end of a filename:

$ for i in *.mkv; do mv "$i" "${i/Show.mkv/NewShow.mkv}"; done

Find/Replace a string within a filename:

$ for i in *.mkv; do mv -i "${i}" "${i/British/English}"; done

$ for i in *.mkv; do mv "${i}" "${i/English/British}"; done

Remove the 10th character from "A Pretty Good Program s01 e01 British TV Show.mkv" to "A Pretty Good Program s01e01 British TV Show.mkv":

$ position=26; for i in *.mkv; do mv -- "$i" "${i:0:$position-1}${i:$position}"; done

Remove a set of characters within a filename from "A Pretty Good Program s01e15 British TV Show.mkv" to "A Prettod Program s01e15 British TV Show.mkv":

$ for i in *.mkv; do mv -- "$i" "${i::7}${i:11}"; done => {i::7} = set first 7 characters, {i:11} = keep everything AFTER the 11th character

Remove unwanted string at the end of a filename, from "A Pretty Good Program s01 e01 British TV Show.mkv" to "A Pretty Good Program s01e01 British.mkv"

$ for i in *.mkv; do mv "${i}" "${i/ TV Show/}"; done

Other:

Run multiple commands on a single line, loop through 3 times:

$ for i in {1..3}; do echo $i; ls -l ; date; whoami; pwd; chown *.*; done

If statement for checking whether 20th character is 'E':

$ for i in *.avi; do echo _; if [[ ${i:21:1} == E ]]; then echo YES; fi; done

If filename in dir contains the string "_suffix" then remove that string:

string=_suffix; for i in *.mkv; do if [[ ${i} = *$string* ]]; then mv "$i" "${i/_suffix/}"; fi; done

How many filenames in dir contains the string "-" and show file:

$ string=-; for i in *; do if [[ ${i} = *$string* ]]; then echo ${i}; fi; done

--------Audio Conversion-----------------------------------

Convert all Flac in a directory to Mp3 using maximum quality variable bitrate:

$ for file in *.flac; do flac -cd "$file" | lame -q 0 --vbr-new -V 0 - "${file%.flac}.mp3"; done

Convert all .flac from a folder subtree in 192Kb mp3:

$ find . -type f -iname '*.flac' | while read FILE; do FILENAME="${FILE%.*}"; flac -cd "$FILE" | lame -b 192 - "${FILENAME}.mp3"; done

Convert all flac files in a folder to mp3 files with a bitrate of 192 kbps:

$ for f in *; do flac -cd $f | lame -b 192 - $f.mp3; done

Convert wma to mp3@128k:

$ for f in *.wma; do ffmpeg -i "$f" -ab 128k "${f%.wma}.mp3" -ab 128K; done

Convert .wma files to .ogg with ffmpeg:

$ find -name '*wma' -exec ffmpeg -i {} -acodec vorbis -ab 128k {}.ogg \;

Convert .wma files to .mp3@192 with ffmpeg:

$ for f in *.wma; do ffmpeg -i "$f" -ab 192k "${f%.wma}.mp3" -ab 192K; done

Convert .wma files to .mp3@192 with lame:

$ for f in *; do wma -cd $f | lame -b 192 - $f.mp3; done

Create a variable bitrate(VBR) mp3 output:

$ mkdir newfile

$ for i in *.m4a; do ffmpeg -i "$i" -codec:v copy -codec:a libmp3lame -q:a 2 newfile/"${f%.m4a}.mp3"; done

Additional:

ffmpeg installation with Ubuntu Multimedia for Trusty

https://launchpad.net/~mc3man/+archive/ubuntu/trusty-media

Install Ubuntu restricted extras:

$ apt-get install ubuntu-restricted-extras

$ apt-get install mint-meta-codec

--------------------------------------------------------

--------Experiments-----------------------------------

NEED TO FIGURE OUT:

Replace all the . in a filename execpt the extension:

e.g. Show.it.real.steel.cars.series.3.01of13.atm.y.tow.720p.hdtv.mp4

----------------NOT COMPLETE--------------------------------

***This aims to read the file attributes of a file and appends the file creation date to the end

of the file. Currently reads the attribute for the first file, assigns the date to the $date variable

and adds that to the end of the entire file.

From:

NewFiles_20160917_Season_1_Episode_1.mkv

To:

filename = NewFiles_20160917_Season_1_Episode_1.mkv2016-09-17.mkv

This should needs to read the attribute for each file and then add to the end of the file before the extension. (From above)

Create files in directory:

$ now=$(date +"%Y%m%d"); for i in {1..6}; do echo "hello x $i" >> NewFiles_${now}_Season_1_Episode_${i}.mkv; done

Reading date attribute of a file and adding it to the end of the file:

$ date=$(ls -l $file_name | cut -c30-38); for i in *; do mv $i "$i${date}".mkv; done

$ date=$(stat -c %x NewFiles_20160917_Season_1_Episode_1.mkv | cut -c1-10); for i in *; do mv $i "$i${date}".mkv; done

----------------------------------------------------------------

===============[Temporary scratch area]=============================

Renaming picture files from a camera

now=$(date +"%Y%m%d"); for i in {1..6}; do echo "hello x $i" >> NewFiles_${now}_Season_1_Episode_${i}.mkv; done

date=$(stat -c %x NewFiles_20160917_Season_1_Episode_1.mkv.mkv | cut -c1-10); for i in *; do mv $i "$i${date}".mkv; done

-----><------> START: More new, work in progress not fully tested -----><------>

================NEW ands USEFUL======================

Create files with specific names:

$ for ((i=001; i<=100; i++)); do echo "this system sux $i" >> "DSC0000$i.jpg"; done

Create dummy files with specific names following the camera:

$ for i in {00001..00666}; do echo "hello x $i" >> "DSC${i}.jpg"; done

Create dummy files with specific names, for specific numbering on camera:

$ for ((i=1058; i<=1158; i++)); do echo "hello x $i" >> "DSC0$i.txt"; done

$ for i in {00001..00666}; do echo "hello x $i" >> "DSC${i}.jpg"; done

$ for i in {01059..01724}; do echo "hello x $i" >> "DSC${i}.jpg"; done

Rename all files in a folder from a specific file sequence number for camera:

$ num=1059; for i in *; do mv "$i" "DSC0$num.JPG"; ((num++)); done

===================TESTING==============================

=> create:

$ for i in {00001..00666}; do echo "hello x $i" >> "DSC${i}.JPG"; done

=> rename all files in a folder from a specific file sequence number:

$ num=1059; for i in *; do mv "$i" "DSC0$num.JPG"; ((num++)); done

================NEW ands USEFUL======================

Changing previous filename with sequential numbers:

$ num=1058; for i in *; do mv "$i" "$(printf '%04d' $num).${i#*.}"; ((num++)); done

$ num=1; for i in *; do mv "$i" "$(printf '%04d' $num).${i}"; ((num++)); done

$ for i in *; do ls; done

01058

Changing filenames for renaming photo's:

$ num=1; for i in *; do mv "$i" "$(printf '%04d' $num).DSC.${i#*.}"; ((num++)); done

$ now=$(date +"%m_%d_%Y"); num=1; for i in *; do mv "$i" "$(printf '%04d' $num)-DSC-${now}-Germany.${i#*.}"; ((num++)); done

$ num=1; for i in *; do mv "$i" "$(printf '%04d' $num).DSC.${i#*.}"; ((num++)); done

-----><------> END: More new, work in progress not fully tested -----><------>

==========================================================

-----------History File Extracted:-----------------------------------

542 for i in $(ls -v); do echo $i $(i/Episode/Show); done

543 for i in $(ls -v); do echo $i ; done

544 ls

545 ls -l

546 for i in *; do echo $i

547 for i in *; do echo $i; done

548 for i in *; do echo $i ${i..3}; done

549 for i in *; do echo $i "${i..3}"; done

550 test=123456

551 echo $(test..3}

552 for i in *; do echo $i "${i:3}"; done

553 for i in *; do mv $i "${i:3}"; done

554 for i in *; do echo $i "${i:3}"; done

555 for i in $(ls -v); do echo $i "${i:3}"; done

556 for i in *; do echo $i "${i:3}"; done

557 for i in *; do echo $i ${i:3}; done

558 for i in *; do mv $i ${i:3}; done

559 for i in *; do echo $i ${i:3}; done

560 for i in *; do echo $i $(i/mkv/MKV); done

561 for i in *; do echo $i ${i/mkv/MKV}; done

562 for i in *; do mv $i ${i/mkv/MKV}; done

563 for i in *; do echo "$i" "${i/mkv/MKV}"; done

564 for i in *; do mv "$i" "${i/mkv/MKV}"; done

565 ls

566 for i in *; do mv "$i" "${i/MKV/mkv}"; done

567 ls

568 for i in *; do mv "$i" "${i:3}"; done

569 ls

570 ls -v

571 history

572 echo 'pid: 1234'| sed -r 's/^.{5}//'

573 for i in *; do echo "$i" | sed -r 's/^.{5}//'; done

574 for i in $(ls -v); do echo "$i" | sed -r 's/^.{5}//'; done

575 history | more

576 for i in $(ls -v); do mv $i "${count} $i"; ((count++)); done

577 for i in $(ls -v); do echo $i "${count} $i"; ((count++)); done

578 init 0

579 cd Java/shell/shell/

580 for i in {1..6}; do echo "hello $i" >> NewFile_$i.txt; done

581 ls

582 for i in {1..6}; do echo "hello $i" >> NewFile_$i.txt; done

583 ls

584 ls -l

585 mr File_.txt

586 ls -l

587 rm File_.txt

588 ls

589 ls -v

590 ls -l

591 ls

592 for i in {1..6}; do echo "hello $i" >> aNewFile_$i.txt; done

593 ls

594 for i in {1..6}; do echo "hello $i" >> File_$i_name.txt; done

595 ls

596 for i in * ; do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

597 for i in * ; do mv -e $i $(echo $i |sed 's/^.\{5\}//g'); done

598 for i in * ; do mv $i $(echo $i |sed 's/^.\{5\}//g'); done

599 ls

600 rm -rf *

601 for i in {1..10}; do echo "hello $i" >> File_$i_name.txt; done

602 for i in * ; do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

603 for i in {1..10}; do echo "hello $i" >> File_${i}_name.txt; done

604 ls

605 ls -l

606 ls -v

607 ls -lv

608 rm File_.txt

609 for i in $(ls -lv); do echo $i `echo $i | cut -c6-`; done

610 for i in $(ls -v); do echo $i `echo $i | cut -c6-`; done

611 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c6-`; done

612 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c5-`; done

613 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c6`; done

614 for i in $(ls -v); do echo -e $i \\t `echo $i | cut c6-`; done

615 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c6-`; done

616 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -6-`; done

617 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c6-`; done

618 history

619 for i in * ; do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

620 for i in * ; do echo -e $i \\t $(echo $i |sed 's/._/-'); done

621 for i in * ; do echo -e $i \\t $(echo $i |sed 's/._//'); done

622 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/._//'); done

623 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/_//'); done

624 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/_/-/'); done

625 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/_/ /'); done

626 ls

627 ls -l

628 for i in $(ls -v); do echo -e "$i" \\t "${i//_/ }"; done

629 for i in $(ls -v); do echo -e "$i" \\t "${i//_/-}"; done

630 for i in $(ls -v); do echo -e "$i" \\t "${i//e/i}"; done

631 for i in $(ls -v); do echo -e "$i" \\t "${i//_/ }"; done

632 init 0

633 ls

634 cd Java

635 cd shell

636 ls

637 mkdir shell

638 cd shell

639 for i in (1..6); do echo $i; done

640 for ((i=1; i<=6; i++)); do echo $i; done

641 for ((i=1; i<=6; i++)); do echo $ifilename; done

642 for ((i=1; i<=6; i++)); do echo $i > filename.txt; done

643 ls

644 cat filename.txt

645 for ((i=1; i<=6; i++)); do echo $i; done

646 for ((i=1; i<=6; i++)); do echo $i_; done

647 for ((i=1; i<=6; i++)); do echo $(i_filename); done

648 for ((i=1; i<=6; i++)); do echo ${i_filename}; done

649 rm filename.txt

650 for i in {1..6}; do echo hello > "File_$i_name.txt; done

651 for i in {1..6}; do echo hello > "File_$i_name.txt"; done

652 ls

653 cat File_.txt

654 for i in {1..6}; do echo hello > File_$i_name.txt; done

655 ls

656 history | more

657 for i in {1..6}; do echo "hello" > File_$i_name.txt; done

658 ls

659 for i in {1..6}; do echo "hello" >> File_$i_name.txt; done

660 ls

661 for i in {1..6}; do echo "hello" >> File_$i_name.txt; done

662 ls

663 for i in {1..6}; do echo "hello" >> File_$i_name.txt; done

664 ls

665 for i in {1..6}; do echo "hello" >> "File_$i_name.txt"; done

666 ls

667 for i in {1..6}; do echo hello >> "File_$i_name.txt"; done

668 ls

669 rm File_.txt

670 ls

671 for i in {1..6}; do echo hello >> "File_${i}_name.txt"; done

672 ls

673 cd Java/shell/shell

674 for i in * ; do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

675 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

676 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c6-`; done

677 for i in * ; do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

678 for i in * ; do echo -e $i \\t $(echo $i |sed 's/._/-'); done

679 for i in * ; do echo -e $i \\t $(echo $i |sed 's/._//'); done

680 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/._//'); done

681 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/_/-/'); done

682 for i in $(ls -v); do echo -e "$i" \\t "${i//_/ }"; done

683 cd Java/shell/shell

684 ls

685 history

686 init 0

687 cd Java/shell/shell

688 for planet in "Mer 36" "Ven 67"; do echo $planet; done

689 for planet in "Mer 36" "Ven 67"; do set -- $planet; done

690 for planet in "Mer 36" "Ven 67"; do set -- $planet echo "$1 $200,000 miles from the sun" ; done

691 for planet in "Mer 36" "Ven 67"; do set -- $planet; echo "$1 $200,000 miles from the sun" ; done; done

692 for planet in "Mer 36" "Ven 67"; do set -- $planet; echo "$1 $200,000 miles from the sun" ; done

693 for planet in "Mer 36" "Ven 67" "Ear 93" "Mars 142"; do set -- $planet; echo "$1 $2,000,000 miles from the sun" ; done

694 for planet in "Mer 36" "Ven 67" "Ear 93" "Mars 142"; do set -- $planet; echo "$1 is $2,000,000 miles from the sun" ; done

695 for planet in "Mercury 36" "Venus 67" "Earth 93" "Mars 142"; do set -- $planet; echo "$1 is $2,000,000 miles from the sun" ; done

696 echo $planets

697 echo $planet

698 FILES=~/

699 echo $FILES

700 ls $FILES

701 for file in $FILES; do echo $FILES; done

702 $DIR=~/, ~/fakedir

703 $DIR=~/ ~/fakedir

704 $DIR="~/, ~/fakedir"

705 pwd

706 for i in *; do echo $i; done

707 for i in $(ls -v); do echo $i; done

708 for i in $(ls -v); do echo $i; if [ ! -e "$i" ] the echo "$i" does not exist."; done

709 for i in $(ls -v); do echo $i; if [ ! -e "$i" ] the echo "$i does not exist."; done

710 filename="*mkv"

711 for i in $filename; do echo "contents of $i" echo "---" cat "$i"; done

712 ls

713 filename="*txt"

714 echo $filename

715 for i in $filename; do echo "contents of $i" echo "---" cat "$i"; done

716 ls -l

717 cat File_1_name.txt

718 for i in $filename; do echo "contents of $i" echo "---" cat "$i"; done

719 for i in $filename; do echo "contents of $i" echo "---"; cat "$i"; done

720 for i in $filename; do echo "contents of $i"; echo "---"; cat "$i"; done

721 for i in $filename; do echo "contents of $i"; echo "---"; cat "$i"; echo; done

722 for i in $filename; do echo "Contents of $i"; echo "---"; cat "$i"; echo; done

723 for i in *; do ls -lv "$file"; done

724 echo $file

725 for i in *; do ls -lv "$file"; done

726 for i in *; do ls -lv "$file"; for file in [EI]*; do echo $file; done

727 for i in *; do ls -lv "$file"; for j in [EI]*; do echo $j; done

728 for i in *; do ls -lv "$file"; for j in *; do echo $j; done

729 for i in *; do ls -lv "$file"; for file in *; do echo $file; done

730 for i in *; do ls -lv "$file"; for file in *; do echo $file; done ; done

731 for i in *; do ls -lv "$file"; for file in [EI]*; do echo $file; done ; done

732 for i in *; do ls -lv "$file"; for file in *; do echo $file; done ; done

733 ls

734 cat foo >> poo.txt

735 echo foo >> cat poo.txt

736 ls

737 echo foo >> poo.txt

738 ls

739 for i in [cp]*; do echo $i; done

740 dir="."

741 echo $dir

-----more history for sudo

510 ls

511 for ((i=1; i<=100; i++)); do echo "this system sux $i" >> NewFiles_Season_1_Episode_$i.mkv"; done

512 for ((i=1; i<=100; i++)); do echo "this system sux $i" >> NewFiles_Season_1_Episode_$i.mkv; done

513 ls -v

514 ls

515 count=1

516 for i in $(ls -v); do echo $i ${count}_$i; ((count++)); done

517 for i in $(ls -v); do echo $i "${count} $i"; ((count++)); done

518 for i in $(ls -v); do mv $i "${count} $i"; ((count++)); done

519 ls

520 for i in $(ls -v); do echo $i ${i/Season/Series}; done

521 for i in $(ls -v); do echo -e $i \\t ${i/Season/Series}; done

522 for i in $(ls -v); do echo -e $i \\t \\t ${i/Season/Series}; done

523 for i in $(ls -v); do echo -e $i \\t \\r \\t ${i/Season/Series}; done

524 for i in $(ls -v); do echo $i ${i/Season/Series}; done

525 ls -v

526 for i in $(ls -v); do echo $i ${i:4}; done

527 for i in $(ls -v); do echo $i \\t ${i:4}; done

528 for i in $(ls -v); do echo $i \\t ${i:1}; done

529 for i in $(ls -v); do echo $i; done

530 for i in $(ls -v); do echo "$i"; done

531 for i in $(ls -v); do echo `$i`; done

532 for i in $(ls -v); do echo ${i}; done

533 for i in $(ls -v); do echo $i; done

534 ls -l

535 init 0

536 pwd

537 ls

538 cd Java

539 ls

540 cd shell

541 ls

542 for i in $(ls -v); do echo $i $(i/Episode/Show); done

543 for i in $(ls -v); do echo $i ; done

544 ls

545 ls -l

546 for i in *; do echo $i

547 for i in *; do echo $i; done

548 for i in *; do echo $i ${i..3}; done

549 for i in *; do echo $i "${i..3}"; done

550 test=123456

551 echo $(test..3}

552 for i in *; do echo $i "${i:3}"; done

553 for i in *; do mv $i "${i:3}"; done

554 for i in *; do echo $i "${i:3}"; done

555 for i in $(ls -v); do echo $i "${i:3}"; done

556 for i in *; do echo $i "${i:3}"; done

557 for i in *; do echo $i ${i:3}; done

558 for i in *; do mv $i ${i:3}; done

559 for i in *; do echo $i ${i:3}; done

560 for i in *; do echo $i $(i/mkv/MKV); done

561 for i in *; do echo $i ${i/mkv/MKV}; done

562 for i in *; do mv $i ${i/mkv/MKV}; done

563 for i in *; do echo "$i" "${i/mkv/MKV}"; done

564 for i in *; do mv "$i" "${i/mkv/MKV}"; done

565 ls

566 for i in *; do mv "$i" "${i/MKV/mkv}"; done

567 ls

568 for i in *; do mv "$i" "${i:3}"; done

569 ls

570 ls -v

571 history

572 echo 'pid: 1234'| sed -r 's/^.{5}//'

573 for i in *; do echo "$i" | sed -r 's/^.{5}//'; done

574 for i in $(ls -v); do echo "$i" | sed -r 's/^.{5}//'; done

575 history | more

576 for i in $(ls -v); do mv $i "${count} $i"; ((count++)); done

577 for i in $(ls -v); do echo $i "${count} $i"; ((count++)); done

578 init 0

579 cd Java/shell/shell/

580 for i in {1..6}; do echo "hello $i" >> NewFile_$i.txt; done

581 ls

582 for i in {1..6}; do echo "hello $i" >> NewFile_$i.txt; done

583 ls

584 ls -l

585 mr File_.txt

586 ls -l

587 rm File_.txt

588 ls

589 ls -v

590 ls -l

591 ls

592 for i in {1..6}; do echo "hello $i" >> aNewFile_$i.txt; done

593 ls

594 for i in {1..6}; do echo "hello $i" >> File_$i_name.txt; done

595 ls

596 for i in * ; do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

597 for i in * ; do mv -e $i $(echo $i |sed 's/^.\{5\}//g'); done

598 for i in * ; do mv $i $(echo $i |sed 's/^.\{5\}//g'); done

599 ls

600 rm -rf *

601 for i in {1..10}; do echo "hello $i" >> File_$i_name.txt; done

602 for i in * ; do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

603 for i in {1..10}; do echo "hello $i" >> File_${i}_name.txt; done

604 ls

605 ls -l

606 ls -v

607 ls -lv

608 rm File_.txt

609 for i in $(ls -lv); do echo $i `echo $i | cut -c6-`; done

610 for i in $(ls -v); do echo $i `echo $i | cut -c6-`; done

611 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c6-`; done

612 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c5-`; done

613 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c6`; done

614 for i in $(ls -v); do echo -e $i \\t `echo $i | cut c6-`; done

615 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c6-`; done

616 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -6-`; done

617 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c6-`; done

618 history

619 for i in * ; do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

620 for i in * ; do echo -e $i \\t $(echo $i |sed 's/._/-'); done

621 for i in * ; do echo -e $i \\t $(echo $i |sed 's/._//'); done

622 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/._//'); done

623 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/_//'); done

624 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/_/-/'); done

625 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/_/ /'); done

626 ls

627 ls -l

628 for i in $(ls -v); do echo -e "$i" \\t "${i//_/ }"; done

629 for i in $(ls -v); do echo -e "$i" \\t "${i//_/-}"; done

630 for i in $(ls -v); do echo -e "$i" \\t "${i//e/i}"; done

631 for i in $(ls -v); do echo -e "$i" \\t "${i//_/ }"; done

632 init 0

633 ls

634 cd Java

635 cd shell

636 ls

637 mkdir shell

638 cd shell

639 for i in (1..6); do echo $i; done

640 for ((i=1; i<=6; i++)); do echo $i; done

641 for ((i=1; i<=6; i++)); do echo $ifilename; done

642 for ((i=1; i<=6; i++)); do echo $i > filename.txt; done

643 ls

644 cat filename.txt

645 for ((i=1; i<=6; i++)); do echo $i; done

646 for ((i=1; i<=6; i++)); do echo $i_; done

647 for ((i=1; i<=6; i++)); do echo $(i_filename); done

648 for ((i=1; i<=6; i++)); do echo ${i_filename}; done

649 rm filename.txt

650 for i in {1..6}; do echo hello > "File_$i_name.txt; done

651 for i in {1..6}; do echo hello > "File_$i_name.txt"; done

652 ls

653 cat File_.txt

654 for i in {1..6}; do echo hello > File_$i_name.txt; done

655 ls

656 history | more

657 for i in {1..6}; do echo "hello" > File_$i_name.txt; done

658 ls

659 for i in {1..6}; do echo "hello" >> File_$i_name.txt; done

660 ls

661 for i in {1..6}; do echo "hello" >> File_$i_name.txt; done

662 ls

663 for i in {1..6}; do echo "hello" >> File_$i_name.txt; done

664 ls

665 for i in {1..6}; do echo "hello" >> "File_$i_name.txt"; done

666 ls

667 for i in {1..6}; do echo hello >> "File_$i_name.txt"; done

668 ls

669 rm File_.txt

670 ls

671 for i in {1..6}; do echo hello >> "File_${i}_name.txt"; done

672 ls

673 cd Java/shell/shell

674 for i in * ; do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

675 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

676 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c6-`; done

677 for i in * ; do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

678 for i in * ; do echo -e $i \\t $(echo $i |sed 's/._/-'); done

679 for i in * ; do echo -e $i \\t $(echo $i |sed 's/._//'); done

680 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/._//'); done

681 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/_/-/'); done

682 for i in $(ls -v); do echo -e "$i" \\t "${i//_/ }"; done

683 cd Java/shell/shell

684 ls

685 history

686 init 0

687 cd Java/shell/shell

688 for planet in "Mer 36" "Ven 67"; do echo $planet; done

689 for planet in "Mer 36" "Ven 67"; do set -- $planet; done

690 for planet in "Mer 36" "Ven 67"; do set -- $planet echo "$1 $200,000 miles from the sun" ; done

691 for planet in "Mer 36" "Ven 67"; do set -- $planet; echo "$1 $200,000 miles from the sun" ; done; done

692 for planet in "Mer 36" "Ven 67"; do set -- $planet; echo "$1 $200,000 miles from the sun" ; done

693 for planet in "Mer 36" "Ven 67" "Ear 93" "Mars 142"; do set -- $planet; echo "$1 $2,000,000 miles from the sun" ; done

694 for planet in "Mer 36" "Ven 67" "Ear 93" "Mars 142"; do set -- $planet; echo "$1 is $2,000,000 miles from the sun" ; done

695 for planet in "Mercury 36" "Venus 67" "Earth 93" "Mars 142"; do set -- $planet; echo "$1 is $2,000,000 miles from the sun" ; done

696 echo $planets

697 echo $planet

698 FILES=~/

699 echo $FILES

700 ls $FILES

701 for file in $FILES; do echo $FILES; done

702 $DIR=~/, ~/fakedir

703 $DIR=~/ ~/fakedir

704 $DIR="~/, ~/fakedir"

705 pwd

706 for i in *; do echo $i; done

707 for i in $(ls -v); do echo $i; done

708 for i in $(ls -v); do echo $i; if [ ! -e "$i" ] the echo "$i" does not exist."; done

709 for i in $(ls -v); do echo $i; if [ ! -e "$i" ] the echo "$i does not exist."; done

710 filename="*mkv"

711 for i in $filename; do echo "contents of $i" echo "---" cat "$i"; done

712 ls

713 filename="*txt"

714 echo $filename

715 for i in $filename; do echo "contents of $i" echo "---" cat "$i"; done

716 ls -l

717 cat File_1_name.txt

718 for i in $filename; do echo "contents of $i" echo "---" cat "$i"; done

719 for i in $filename; do echo "contents of $i" echo "---"; cat "$i"; done

720 for i in $filename; do echo "contents of $i"; echo "---"; cat "$i"; done

721 for i in $filename; do echo "contents of $i"; echo "---"; cat "$i"; echo; done

722 for i in $filename; do echo "Contents of $i"; echo "---"; cat "$i"; echo; done

723 for i in *; do ls -lv "$file"; done

724 echo $file

725 for i in *; do ls -lv "$file"; done

726 for i in *; do ls -lv "$file"; for file in [EI]*; do echo $file; done

727 for i in *; do ls -lv "$file"; for j in [EI]*; do echo $j; done

728 for i in *; do ls -lv "$file"; for j in *; do echo $j; done

729 for i in *; do ls -lv "$file"; for file in *; do echo $file; done

730 for i in *; do ls -lv "$file"; for file in *; do echo $file; done ; done

731 for i in *; do ls -lv "$file"; for file in [EI]*; do echo $file; done ; done

732 for i in *; do ls -lv "$file"; for file in *; do echo $file; done ; done

733 ls

734 cat foo >> poo.txt

735 echo foo >> cat poo.txt

802 ls -l

803 ls | wc -l

804 count=1

805 echo $count

806 for i in $(ls -v); do echo $i "${count} $i"; ((count++)); done

807 cd /home/notroot/Java/shell

808 ls

809 for i in $(ls -v); do echo $1; done

810 ls

811 for i in $(ls -v); do echo $i; done

812 mkdir newdir

813 ls -l

814 chown notroot:notroot *.*

815 ls -l

816 chown notroot:notroot shell/

817 chown notroot:notroot newdir/

818 cd newdir

819 ls

820 ls -l

821 ls -v

822 ls -lv

823 for i in $(ls -v); do echo $i; done

824 for i in $(ls -v); do echo -e $i; done

825 for i in $(ls -v); do echo $i; done

826 for i in $(ls -v); do echo $i $i; done

827 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/^.\{5\}//g'); done

828 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/^.\{1\}//g'); done

829 for i in $(ls -v); do echo -e $i \\t `echo $i | cut -c6-`; done

830 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/._//'); done

831 filename="*txt"

832 for i in $filename; do echo "Contents of $i"; echo "---"; cat "$i"; echo; done

833 filename="*mkv"

834 echo $filename

835 for i in $filename; do echo "Contents of $i"; echo "---"; cat "$i"; echo; done

836 ls

837 ls -l

838 ls -lv

839 for i in $(ls -v); do echo $i; done

840 for i in $(ls -v); do echo -e $i \\t ${i/Season/Series}; done

841 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/"NewFiles_Series_1_Episode_"/"DSC00"/'); done

842 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/-/_/'); done

843 for i in $(ls -v); do echo -e "$i" \\t "${i//_/ }"; done

844 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/_/-/'); done

845 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/NewFile/DSC/'); done

846 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/NewFiles_Season_1_Episode_/DSC/'); done

847 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/NewFiles_Season_1_Episode_/DSC00/'); done

848 for i in $(ls -v) ; do echo -e $i \\t $(echo $i |sed 's/NewFiles_Season_1_Episode_/DSC_00/'); done

849 for i in $(ls -v) ; do mv -e $i \\t $(echo $i |sed 's/NewFiles_Season_1_Episode_/DSC_00/'); done

850 for i in $(ls -v) ; do cp -e $i \\t $(echo $i |sed 's/NewFiles_Season_1_Episode_/DSC_00/'); done

851 for i in $(ls -v) ; do mv $i \\t $(echo $i |sed 's/NewFiles_Season_1_Episode_/DSC_00/'); done

852 ls

853 for i in $(ls -v) ; do mv $i $(echo $i |sed 's/NewFiles_Season_1_Episode_/DSC_00/'); done

854 for i in $(ls -v); mv $i $i.jpg; done

855 for i in $(ls -v); do mv $i $i.jpg; done

856 for i in $(ls -v); do mv $i $i; done

857 for i in $(ls -v); do cp $i $i; done

858 for i in *; do cp $i $i; done

859 for i in *; do cp $i $i.jpg; done

860 for i in *.mkv; do mv -v -- "$i" "${i%.mkv}.jpg; done

861 for i in *.mkv; do mv -v -- "$i" "${i%.mkv}.jpg"; done

862 ls

863 for i in $(ls -v) ; do mv -v -- "$i" \\t "$(echo $i |sed 's/_/-/')"; done

864 num=1; for i in *; do mv "$i" "$(printf '%04d' $num).${i#*.}"; ((num++)); done

865 ls

866 num=1; for i in *; do mv "$i" "$(printf '%04d' $num).${DSC0i#*.}"; ((num++)); done

867 ls

868 num=1; for i in *; do mv "$i" "$(printf '%04d' $num).${i#*.}"; ((num++)); done

869 ls

870 rm *.*

871 ls

872 ls -l

873 num=1; for i in $(ls -v); do mv "$i" "$(printf '%04d' $num).${i#*.}"; ((num++)); done

874 num=1; for i in *; do mv "$i" "$(printf '%04d' $num).${i#*.}"; ((num++)); done

875 num=1; for i in "$(ls -v)"; do mv "$i" "$(printf '%04d' $num).${i#*.}"; ((num++)); done

876 ls

877 rm *

878 ls

879 num=1; for i in *; do echo "$i" "$(printf '%04d' $num).${i#*.}"; ((num++)); done

880 num=1; for i in *; do echo "$i" "$i(printf '%04d' $num).${i#*.}"; ((num++)); done

881 num=1; for i in *; do echo "$i" "$(printf '%14d' $num).${i#*.}"; ((num++)); done

882 num=1; for i in *; do echo "$i" "$(printf '%04d' $num).${i#*.}"; ((num++)); done

883 num=1; for i in *; do echo "$i" "$(printf '%05d' $num).${i#*.}"; ((num++)); done

884 num=1; for i in *; do echo "$i" "$(printf 'DSC%05d' $num).${i#*.}"; ((num++)); done

885 num=1; for i in *; do echo "$i" "$(printf 'DSC%05d' $num).${i#*.}"; ((num++)); donenum=1; for i in `$(ls -v)`; do echo "$i" "$(printf 'DSC%05d' $num).${i#*.}"; ((num++)); done

886 num=1; for i in "$(ls -v)"; do echo "$i" "$(printf 'DSC%05d' $num).${i#*.}"; ((num++)); done

887 ls

888 ls -l

889 num=1; for i in "$(ls -v)"; do echo "$i" "$(printf 'DSC%05d' $num).${i#*.}"; ((num++)); done

890 num=1; for i in $(ls -v); do echo "$i" "$(printf 'DSC%05d' $num).${i#*.}"; ((num++)); done

891 num=1; for i in $(ls -v); do mv "$i" "$(printf 'DSC%05d' $num).${i#*.}"; ((num++)); done

892 for i in $(ls -v); do mv $i "${count} $i"; ((count++)); done

893 for i in $(ls -v); do echo $i "${count} $i"; ((count++)); done

894 num=1; for i in $(ls -v); do echo "$i" "$(printf 'DSC%05d' $num).${i#*.}"; ((num++)); done

895 num=1; for i in {$(ls -v)}; do echo "$i" "$(printf 'DSC%05d' $num).${i#*.}"; ((num++)); done

896 num=1; for i in {$(ls -v)}; do mv "$i" "$(printf 'DSC%05d' $num).${i#*.}"; ((num++)); done

897 num=1; for i in *; do echo "$i" "$(printf 'DSC%05d' $num).${i#*.}"; ((num++)); done

898 for f in *' '*; do mv "$f" "`echo $f | sed -e 's/ /_/g'`"; done

899 ls

900 for x in *; do mv $x $(echo ${x%*.*}); done

901 ls

902 for i in * ; do mv $i $customname; done

903 ls

904 init 6

905 init 0

906 history >> sudo.history.txt

=============REFERENCE AND READING MATERIAL===================================

http://tldp.org/LDP/abs/html/