All commands (13,335)
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2function hibp() { sha1=$(echo -n "$1"|sha1sum|awk '{print toupper($0)}'|tr -d '\n'); curl -s -H $'Referer: https://haveibeenpwned.com/' https://api.pwnedpasswords.com/range/$(echo -n $sha1|cut -c1-5)|grep -i $(echo -n $sha1|cut -c6-40); }
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0ffmpeg -i input.mp4 -vcodec libx264 -crf 30 output.mp4
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This snippet allows to process the output of any bash command line by line.
0while read -r line; do echo $line; done < <(YOUR COMMAND HERE); -
The file should be a text file formatted like this example: 1 Introduction 10 Chapter 1 +10 Chapter 1, Part A +25 Chapter 1, Part B ++25 Chapter 1, Part B, Subsection 1 ++27 Chapter 1, Part B, Subsection 2 +30 Chapter 1, Part C 50 Chapter 2 70 Chapter 3 The '+' indicates a sub-level heading (multiple +'s for multiple sub-levels). The first number on the line is the source page reference number. The rest of the text on the line is the name of the chapter / subheading.
0k2pdfopt -mode copy -n -toclist $tocFile $inFile -o $outFile -
0find /path -name '*.pdf' -exec sh -c 'pdftotext "{}" - | grep --with-filename --label="{}" --color "your pattern"' \;
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0echo -e "\n[sublime-text]\nServer = https://download.sublimetext.com/arch/dev/x86_64" | sudo tee -a /etc/pacman.conf
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Converts an OGG file to MP3 at desired quality, preserving the id3v2 tags.
0ffmpeg -i input.ogg -ab 256k -map_metadata 0:s:0 output.mp3 -
You need to use the aws ec2 describe instances to get the JSON file. Show Sample Output
0cat aws.json | jq -r '.Reservations[].Instances[] | [.PrivateIpAddress, .SecurityGroups[].GroupId,.SecurityGroups[].GroupName,.NetworkInterfaces[].NetworkInterfaceId,(.Tags[] | select(.Key =="Name") | .Value),([.InstanceId| tostring] | join(";"))]|@csv' -
0ifconfig $(route -n |awk '/0[.]0[.]0[.]0/{print $NF;exit}') | awk '/inet/{print $2}'
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1docker ps -aq --filter status=exited | xargs docker rm
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Apart from an exact copy of your recent contents, also keep all earlier versions of files and folders that were modified or deleted. Inspired by the excellent EVACopy http://evacopy.sourceforge.net Show Sample Output
2backup() { source=$1 ; rsync --relative --force --ignore-errors --no-perms --chmod=ugo=rwX --delete --backup --backup-dir=$(date +%Y%m%d-%H%M%S)_Backup --whole-file -a -v $source/ ~/Backup ; } ; backup /source_folder_to_backup -
0docker image rm $(docker image list -f "dangling=true" -qa)
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This will do a clean up of stopped containers and volumes used by them Show Sample Output
0docker system prune --volumes -f -
0docker images | grep <none> | awk '{ print $3; }' | xargs docker rmi
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Removed grep and simplified if statement. -- Friday is the 5th day of the week, monday is the 1st. Output may be affected by locale. Show Sample Output
0for i in {2018..2025}-{01..12}-13; do [[ $(date --date $i "+%u") == 5 ]] && echo "$i Friday the 13th"; done -
The original overwrites any previous backups, and only saves exactly the last hours worth, but not 1 hour + 1 minute. This version creates or appends files, and backs up everything since the last backup (using the backups timestamp as the reference), plus it uses TMPDIR if set.
0echo "function backup() { local CA=c T=${TMPDIR:+/tmp}/backup.tar.gz; [[ -f $T ]]&& C=r; find ~ -type f -newer $T | tar ${CA}vfz $T -T - ;}" >> ~/.bashrc -
0for i in $(aws ec2 describe-regions --output text --region "" | cut -f 3); do aws ec2 describe-images --output text --region $i --filter Name=name,Values=myimage | cut -f 6 | grep ami* | xargs -I {} aws ec2 deregister-image --region $i --image-id {};done
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0echo "some text `date +%Y-%m-%d\_%H:%M:%S`" >> /path/to/filename
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It will generate a new file ending with "_ThumbnailImage.jpg" which is the embedded thumbnail inside the JPG for example.
0exiftool -a -b -W %d%f_%t%-c.%s -preview:all YourFileOrDirectory -
-n reads input, line by line, in a loop sending to $_ Equivalent to while () { mycode } -e execute the following quoted string (i.e. do the following on the same line as the perl command) the elipses .. operator behaves like a range, remembering the state from line to line.
2perl -ne 'print if /start_pattern/../stop_pattern/' file.txt -
0find . -type d
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Uses the shell builtin `declare` with the '-f' flag to output only functions to grep out only the function names. You can use it as an alias or function like so: alias shfunctions="builtin declare -f | command grep --color=never -E '^[a-zA-Z_]+\ \(\)'" shfunctions () { builtin declare -f | command grep --color=never -E '^[a-zA-Z_]+\ \(\)'; } Show Sample Output
2builtin declare -f | command grep --color=never -E '^[a-zA-Z_]+\ \(\)' -
0docker images | grep -v REPOSITORY | awk '{print $1}' | xargs -L1 docker pull
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Friday is the 5th day of the week, monday is the 1st. Output may be affected by locale. Show Sample Output
2for i in {2018..2025}-{01..12}-13; do [[ $(date --date $i +"%u" | grep 5) != 5 ]] || echo "$i Friday the 13th"; done -
1ip route add default via 192.168.2.1 dev ens33
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