[CMDS][Shell] 13.08.2023 cmdz linux terminal ubuntu pc
**Check Shell Script**: shellcheck.net
*ffm-peg
Save all installed packages:
--------------
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sudo dpkg-query -f '${binary:Package}\n' -W > packages_list.txt
( Reinstall: dpkg -i *deb )
kopimi.space/@koyu/110878849059439919
kopimi.space/@koyu/110878849059439919
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If file exist:
-----------------
#!/bin/bash
if [ -e x.txt ]
then
echo "ok"
else
echo "nok"
fi
(SOURCE: stackoverflow.com/questions/40082346/how-to-check-if-a-file-exists-in-a-shell-script/40082454)
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Shutdown Android Phone:
--------------------------------------
reboot -p
(Source: android.stackexchange.com/questions/47989/how-can-i-shutdown-my-android-phone-using-an-adb-command)
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Delete last xxxx characters from string:
---------------------------------------------------------
string="variablehere"
echo "$string" | sed 's/....$//'
(SOURCE: linuxquestions.org/questions/linux-software-2/sed-remove-last-four-characters-from-string-396974)
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Read command output to variable:
-------------------------------------------------
X="$(COMMAND)"
(SOURCE: stackoverflow.com/questions/4651437/how-to-set-a-variable-to-the-output-from-a-command-in-bash)
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find newest file over x kb
---------------------------------------------
cd /storage/emulated/0/Pictures/mu_coverart
FILE=$(find -size +6k -name mu_coverart\*.jpg | sort -n | tail -1)
cp $FILE /storage/emulated/0/Pictures/mu_coverart/currplaying.jpg
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del part of line in txt b4 string
-------------
sed -i 's/^.*abc/abc/'
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id folder:
---------------
cd /storage/external_SD
pattern="LGG3"
for _dir in *"${pattern}"*; do
[ -d "${_dir}" ] && dir="${_dir}" && break
done
echo "${dir}"
(Source: stackoverflow.com/questions/16344365/use-bash-to-find-a-folder-name-that-contains-a-string)
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FOR Command:
for x in *.png; do
convert "$x" -alpha on -channel a -evaluate multiply 0.45 +channel "$x"
done
good solution, if anyone wondering equivalent linux bash: for file in *.png ; do convert "${file}" -transparent '#ffcc66' "batch/${file}" ; done
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cp = Copy File(s) or Folders (usage: cp source path destination path)
####if copying doesn't work, add a -R after cp like so: "cp -R SOURCEPATH DESTINATIONPATH"
#### SOURCEURL: mrfoo.de/archiv/348-cp-omitting-directory.html
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mv = Move File(s) or Folders (usage: mv source path destination path)
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rm = Delete File(s) or Folders (usage: rm FILE/FOLDER/PATHTOIT ) [you can add -r or -R to remove nonempty dirs]
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mkdir = Make a Directory in a specific path (usage: mkdir path/newdir/
----
only create if dir doesn't already exist:
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mkdir -p dir
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mkfile = ???
only create if file doesn't already exist:
------------------------------------------
test -e /var/mobile/file.txt || touch /var/mobile/file.txt
(SOURCE: unix.com/302199965-post3.html)
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-----ZIP RELATED-------
===ZIP===
extract/unzip file: unzip -o Symlink.zip
-------------------
extract/unzip file (iOS only?): /usr/bin/unzip -XKo "/Applications/RelinkiFile.app/Symlinks.zip" -d "/var/root/"
zip = Pack a folder(s) or file(s) into a zip file (Usage: zip NAME.zip /PATH/OF/TO/BE/ZIPPED/FILEorFOLDER)
==Bz2====
pack bzip2 bzip2 "file"
bunzip2 bunzip "file"
(SOURCE: linux-fuer-alle.de/doc_show.php?docid=76)
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echo = Output text (requires ""'s !!!! (usage: echo "text to output")
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ls = list files in directory (just type ls to list files)
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ls -l = list permissions of a file or Folder (usage: ls -l FILE/FOLDER/PATH
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touch = Zugriffs und Veränderungszeiten verändern(touch PATHTOFILE/FOLDER)
#### Damit ändert man die Zugrifszeit/Veränderungszeit auf den jetzigen Zeitpunkt)
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chmod 1 = Changes Folders/Files Permission (usage: chmod 777 File/Folder)
###### you can replace the 777 with any other, 777 is just open for anything
chmod 2 = Changes Folders/Files Permission (usage: chmod u=rwx,g=rwx,o=rwx File/Folder)
###### you can replace the u=rwx,g=rwx,o=rwx with other values,e.g.u=rwx,g=rx,o=rx)
###### u=rwx,g=rwx,o=rwx stands for 777 wich pretty much allows everything
###### SOURCEURL: hostings.com/manual/sectione/using_chmod.htm
chmod -R = chmod Rekursiv (ändert auch unterordner und dateien mit (usage: chmod -R 777 /mydir)
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chown = change ownership of file (usage: chown mobile:mobile *deb)
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-$(date +%F) = Add Date to Filename ( usage: Filename-$(date +%F) )
###### SOURCEURL: ubuntuforums.org/showpost.php?p=2232212&postcount=3
###### more extensive date tipps: cyberciti.biz/tips/shell-scripting-creating-reportlog-file-names-with-date-in-filename.html
######$(date +%F-%H-%M)infront of a filename (or standalone) outputs something like 2011-02-26-17-52
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Globalignore = ignore one filetype/file when copying (usage: export GLOBIGNORE='file1' for files
export GLOBIGNORE =*.extension for all files
of a specific extensions)
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exec = execute app (usage: exec /PATH/TO/APP/OR/SHELL/SCRIPT)
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xargs = execute command [can be added after other command] (usage: find *.deb -mmin +10 | sudo xargs rm -r) <= sudo was added inbeforehand xargs in this example (this example deletes all *deb files found that are older than 10 minutes [the -r after the rm in this example HAS TO BE LOWERCASE !!! if it is Uppercase it WON'T WORK !!!]
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find = find file/folder [-maxdepth can be added to make the search quicker] (usage: find -maxdepth 2 -name iCabMobile.app)
-iname instead of -name to do a in-casesensetive search (superuser.com/questions/277235/case-insensitive-search-from-find-command)
use an asteriks after the name "find -maxdepth 2 -iname "iCabM*" to search for every file that starts with "iCab"
(SOURCE: computerhope.com/unix/ufind.htm)
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> = Add a string of text to a new file (usage: "TEXT/OR COMMAND" > "/PATH/text.txt")
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>> = Add a string of text to an existing file (usage: "TEXT/OR COMMAND" >> "/PATH/text.txt")
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| = Can be used to add another command to the current one (usage: cd /var/mobile |mkdir test)
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plutil -convert = Convert plist to binary (usage: plutil -convert xml1 NAME.plist)
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=======Sed========
Simple Text replace:
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sed -i 's/ugly/beautiful/g' /home/bruno/old-friends/sue.txt
Example of Replacing TEXT: "s#TEXT1/.*/TEXT2/TEXTTHATWILLREPLACEOTHERTEXT" /PATH/TO/FILE
-------------------------- = Replacing the text between two strings of text
(usage: sed "s#file://localhost/.*/Documents/#$x#" Bookmarks.plist > out.plist) <= the "> out.plist"
is needed so the file will be saved to "out.plist"
(SOURCE: unix.com/shell-programming-scripting/159298-replacing-variable-text-between-fixed-strings.html
Sed with / \ as paths: BETTER SED (_ as delimiter):
----------------------- sed -i 's_TEXT1_TEXT2_g' /var/mobile/test.txt
(this uses _ as delimiter, therefore you can use any kind of "/" or "\" making it great for editing file paths (e.g. iFile Bookmarks)
(SOURCE: grymoire.com/Unix/Sed.html#uh-0)
SED with extracting variables: sed -i "s|$x|$y|g" /var/mobile/test.txt (the variables in this case are $x and $y
------------------------------ (SOURCE: unix.com/302613647-post4.html [example was modified to get rid of unneeded ""'s])
Extract line with SED: sed -n '746p' /var/mobile/Library/iFile/Bookmarks.plist > /var/mobile/text.txt
----------------------
Extract line with SED while using variable as linenr: sed -n "$s" /var/mobile/Library/iFile/Bookmarks.plist > /var/mobile/text.txt
----------------------------------------------------- (SOURCE: unix.com/shell-programming-scripting/232999-quick-question-expanding-
variable.html#post302842035)
Add line to beginning of each line:
----------------------------------- $ sed 's/^/sudo apt-get -y -d install /' /var/mobile/packages.sh
Add newline to end of file: sed -i -e '$a\' file
--------------------------- (SOURCE: unix.stackexchange.com/questions/31947/how-to-add-a-newline-to-the-end-of-a-file)
Replace newlines with spaces sed: sed -i ':a;N;$!ba;s/\n/\t/g' file_with_line_breaks
------------------------------------ (SOURCE: unix.stackexchange.com/questions/26788/using-sed-to-convert-newlines-into-spaces)
Remove all whitespace/empty:
----------------------------------- sed '/^$/d;s/[[:blank:]]//g' /var/mobile/Media/0backup/tmp/packages.txt > /var/mobile/Media/0backup/tmp/packages2.txt
sudo mv /var/mobile/Media/0backup/tmp/packages2.txt /var/mobile/Media/0backup/tmp/packages.txt
Remove everything except 123456789., sed -i 's/[^1234567890,.]//g' /var/mobile/pcip.txt
------------------------------------ (Source: stackoverflow.com/questions/9730314/removing-everything-except-the-numbers-1-2-3-4-and-5-from-a-file)
Remove all stated: sed -i 's/[1234567890,.]//g' /var/mobile/pcip.txt
--------------------
Remove all spaces in a file: sed -i 's_ __g' /var/mobile/text.txt
----------------------------
Remove all tabs in file:
------------------------ sed -i 's_ __g' /var/mobile/text.txt
Remove first 5 Characters of file: sed "s/^.\{,5\}//" /var/mobile/pcip.txt
---------------------------------- (SOURCE: stackoverflow.com/questions/3795512/delete-the-first-5-chars-on-any-line-of-a-textfile-in-linux)
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x=`awk '{ print $0}' /var/mobile/icab.txt` Defining a variable FROM A FILE to be used later on (usage:
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x=`find *.deb.x` calling a variable directly in SHELL and store it within the command line for later usage
$x
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#$x# = reading a previously defined variable) (usage: sed "s#file://localhost/.*/Documents/#$x#" Bookmarks.plist > out.plist)
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Deleting last line in a text file = unix.com/shell-programming-scripting/6449-delete-last-line-text-file.html
---------------------------------
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ignore Error Messages = 2> /dev/null (Usage: add " 2> /dev/null" behind each line you want to ignore possible errors from)
-------------------------- (SOURCE: unix.com/shell-programming-scripting/159327-ignoring-mv-commands-cannot-stat-error.html)
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Append current time to file (to make it unique)= (Usage: append=`date +%r | cut -d " " -f 1` ) [this for example will add the time after the files extionsion]
----------------------------------------------- ( file.extension-$append )
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incremental number= (Usage:cp img.jpg img_%d.jpg) [the "_%d" indicates that a incremental number will be placed there]
-------------------- (SOURCE: linuxquestions.org/questions/programming-9/shell-scripting-how-can-i-increment-a-file-by-number-572451/#post2837559)
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Rename multiple extensions= for i in * ; do
-------------------------- echo mv \"$i\" \"$i.mp3\" | sh (the echo AND | sh make the command work !)
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Replace complete line in file = sed --in-place "53c$variable" conf.conf
------------------------------ ["53" in this case is the line nr |and| "$variable" is the text that will replace the line in this example ]
(Source: forums.whirlpool.net.au/archive/536876 [also my thread: unix.com/302527110-post7.html])
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wget = Download file from specified URL (Usage: wget URL/to/specific/file)
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uiopen URL = opening an URL from Shell and passing it on to safari/other app (Usage: uiopen google.com) [FOR IOS: you can also use other apps that support the open-in URL scheme, such as: wedict://WORDTOTRANSLATE, idownload://filepath/url]
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uiopen safari:// = (Wanted errormessage popup, to indicate progress in script) (Usage: uiopen safari://TEXT_OUTPUT)
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play = play sound file(to indicate progress in script file ?) (Usage: play PATHTOSOUNDFILE)
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Keep programs running = (will keep progrs running even if Terminal is closed) (Usage: COMMAND &) ["&" at the end will keep commands running, and they even survive a respring, sadly SBLaunched apps don't work with this, terminal only]
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Keep programs running 2 = (works the same as the normal one, just better) (Usage: nohup COMMAND &)
(Source: linux questions.org how do I get a script to run in background ? )
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RENAME MULTIPLE FILE XTENSIONS FOR SURE (in this case .dylib to .disabled):
cd
cd /Library/MobileSubstrate/DynamicLibraries/
for file in *.dylib ; do sudo mv $file `echo $file | sed 's/\(.*\.\)dylib/\1disabled/'` ; done
(SOURCE2: lab.artlung.com/unix-batch-file-rename)
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Create complete (nested) Directory Structures):
mkdir -n /directory/path/to/be/created
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**answer all questions that follow afterwards with yes (forexample overwrite confirmations):
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yes|sudo apt-get update OR EASY WAY: sudo apt-get update -y
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**find and delete folders with specific name find . -type d -name "*[Qq]uick*" -exec rm -rf {} \;
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(unix.com/shell-programming-scripting/204201-removing-folders-specific-name-part.html#post302718631)
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**sed print file line to other file:
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sed -n '746p' /var/mobile/Library/iFile/Bookmarks.plist >> /var/mobile/cloudftponline.txt
line path-to-file-where-the-line-is-extracted file the line will be pasted in
(Source: unix.com/unix-dummies-questions-answers/37822-how-print-35th-line-file.html [was modified by me])
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**sed delete spaces inside file:
-------------------------------
sed -e 's/[\t ]//g;/^$/d' originalfile > outputfile
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**grep find pattern in file, print result
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grep -i -e 'pattern' text.txt > result.txt Search for a pattern inside a text file and print the whole line you found into another one
***NOTE: the -i was added to make grep search in a case-insensetive-manner (SOURCE: tech.groups.yahoo.com/group/vim/message/67182)
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Delete 0 byte file:
-------------------
cd /target/directory/
find -maxdepth 1 -type f -empty -print0|xargs rm This command will delete any 0 byte file in the directory you "cd" into. (command was modified by me to work)
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Exit Shell/Abort if file is not present:
-----------------------------------------
if [ ! -f /var/mobile/z_bidresult.txt ] This will check if the file "z_bidresult" inside the "/var/mobile/" directory is present
then and if isn't, display a message "No Match found, exiting..." and close the shell immediately
sbalert -t "No Match found, exiting..." (SOURCE: bash.cyberciti.biz/guide/Logical_Not_!)
exit
fi
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Repeat command for each line in txt File:
-----------------------------------------
while read x (SOURCE: unix.com/shell-programming-scripting/223455-repeat-command-new-variable-each-line-txt-file.html#post302805061)
do
find /var/mobile -maxdepth 2 -name "$x" >> "$x".txt < "find /var/mobile -maxdepth 2 -name "$x" >> "$x".txt" is in this case the command. It can be replaced with any command that contains a variable
done < /var/mobile/names.txt < the "names.txt" is in this case the file containing the lines which will replace the x variable in each new run of the script
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Merge multiple txt/sh's into one file:
--------------------------------------
cat *.sh > final.sh (SOURCE: unix.com/shell-programming-scripting/223473-copy-content-multiple-shs-into-one.html#post302805177)
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Ignore lines that start with # while read LINE
------------------------------ do
[ "${LINE:0:1}" = "#" ] && continue
...
done
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search string inside file: grep -r "string" /path/text.txt
-------------------------- (use > /var/mobile/output.txt after this command to filter the output (searched value)
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Find the newest directory in the current one:
ls -t -r | tail -n 1 > /var/mobile/latest.txt
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Find all folders/files with .app in their name (no depth specified)=
find *.app > /var/mobile/latest2.txt
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Copy the first line of a file to another one=
sed -n '1,1p' /var/mobile/original.txt > /var/mobile/result.txt
===================================================================================================================================================================
============================================================AWK_Commands===========================================================================================
===================================================================================================================================================================
Reading content from a (preferably text) file to the shell: $ awk '{ print $0}' = (usage: $ awk '{ print $0}' /path/to/file/ )
----------------------------------------------------------- (SOURCE: cyberciti.biz/faq/read-a-file-line-by-line-using-awk)
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awk '{print $0,"TEXT"}' infile > outfile = Add text to each line of a file (usage: awk '{print $0,"add this text to each line"}' infile > outfile)
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Stop Script Till folder doesn't change size anymore: DIR='/var/mobile/Media/iTunes_Control/'
----------------------------------------------------
get_size(){ du -s "$1" 2>/dev/null | awk '$0=$1';sleep 60;}
ls
dir_size=$(get_size "$DIR")
while [ "$(get_size "$DIR")" -ne "$dir_size" ]; do
echo 'Size has changed. Sleeping for 60 more seconds'
dir_size=$(get_size "$DIR")
done
echo 'Size has not changed since the last 60 seconds.'
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Delete all files from a folder except for .mp3 files: find . ! -wholename "*.mp3" ! -wholename "*.MP3" -delete
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Copying files while ignoring other filetypes:
---------------------------------------------
Just put list of exclude patterns in a file eg /tmp/nosync.txt
Code:
---------
*.mp3
*.mp4
*.sav
---------
Now run
rsync -axv --exclude-from=/tmp/nosync.txt --dry-run /source/top/dir /d
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~~~~~~~~~~~~~~~~~~~
~~~~~~~ffmpeg~~~~~~~
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Get song duration:
---------------------------
x="$(ffmpeg -i file.mp3 2>&1 | grep Duration | sed 's/Duration: \(.*\), start/\1/g')"
string="$x"
echo "$string" | sed 's/................................$//'
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