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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -1,4 +1,4 @@ Gist created from https://github.com/arturoherrero/command-line-one-liners ### Run the last command ``` -
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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -1,3 +1,4 @@ Gist created from (https://github.com/arturoherrero/command-line-one-liners)[https://github.com/arturoherrero/command-line-one-liners] ### Run the last command ``` -
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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -107,7 +107,7 @@ $ less +F somelogfile ### Redirect standard input to a file. Print it to standard output ``` $ command | tee file.txt | less ┌─────────┐ ┌─────────┐ ┌─────────┐ │ command │─▸│ tee │─▸│ stdout │ @@ -117,17 +117,18 @@ $ command | tee file.txt | less ┌───────────┐ │ file │ └───────────┘ ``` ### Search for a string inside all files in the current directory ``` $ grep -RnsI --color=auto <pattern> * ``` ### Beyond grep ``` _ /| \'o.O' =(___)= U ack! $ ack <pattern> ``` ### Recursively remove all empty directories -
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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,256 @@ ### Run the last command ``` $ !! ``` ### Run the last command as root ``` $ sudo !! ``` ### Create a script of the last executed command ``` $ echo "!!" > script.sh ``` ### Reuse all parameter of the previous command line ``` $ echo cd . $ !* ``` ### Run the last command with some argument ``` $ echo a b c d e $ echo !!:2 $ echo !!:3-$ ``` ### Insert the last argument of the previous command ``` $ cp script.sh /usr/bin/ $ cd <ESC> . ``` ### Runs previous command but replacing ``` $ echo no typos $ ^typos^errors ``` ### Escape any command aliases ``` $ alias ls="ls -a" $ \ls ``` ### Quickly rename a file ``` $ mv filename.{old,new} $ mv filename.{png,jpg} ``` ### Create a quick back-up copy of a file ``` $ cp file.txt{,.bak} ``` ### Run a command from the history ``` $ history ... 1225 ls -l 1226 git status 1227 history $ !-3 $ !1225 ``` ### Search the history for the most recent command beginning with ‘text’ ``` $ !text ``` ### List of commands you use most often ``` $ history | awk '{print $2}' | sort | uniq -c | sort -rn | head ``` ### Execute a command without saving it in the history ``` $ <space>command ``` ### Make directory including intermediate directories ``` $ mkdir -p a/long/directory/path ``` ### Create a directory and change into it ``` $ mkdir dir && cd $_ ``` ### Change to the previous working directory ``` $ cd - ``` ### Jump to a directory. Execute a command. Jump back to current directory ``` $ (cd /tmp && ls) ``` ### Create simple text file from command line ``` $ cat > file.txt {your text here} {your text here} <ctrl-d> ``` ### Empty a file ``` $ > file.txt ``` ### Show PATH in a human-readable way ``` $ echo $PATH | tr ':' '\n' $ tr ':' '\n' <<< $PATH ``` ### Make ‘less’ behave like ‘tail -f’ ``` $ less +F somelogfile ``` ### Redirect standard input to a file. Print it to standard output ``` $ command | tee file.txt | less ``` ┌─────────┐ ┌─────────┐ ┌─────────┐ │ command │─▸│ tee │─▸│ stdout │ └─────────┘ └────┬────┘ └─────────┘ │ ▾ ┌───────────┐ │ file │ └───────────┘ ### Search for a string inside all files in the current directory ``` $ grep -RnsI --color=auto <pattern> * ``` ### Beyond grep _ /| \'o.O' =(___)= U ack! ``` $ ack <pattern> ``` ### Recursively remove all empty directories ``` $ find . -type d -empty -delete ``` ### Count your commits ``` $ git shortlog -sn ``` ### Serve current directory tree at http://$HOSTNAME:8000/ ``` $ python -m SimpleHTTPServer ``` ### Share a file between two computers ``` $ nc -l 5566 > data-dump.sql $ nc <his-ip-address> 5566 < data-dump.sql ``` ### Download an entire website ``` $ wget -m http://website.com ``` ### Clear the terminal screen ``` <ctrl-l> ``` ### Salvage a borked terminal ``` $ reset ``` ### Close shell keeping all subprocess running ``` $ disown -a && exit ``` ### Run a command immune to hangups ``` $ nohup command & ``` ### Attach screen over ssh ``` $ ssh user@host -t screen -r ``` ### Compare a remote file with a local file ``` $ ssh user@host cat /path/to/remotefile | diff /path/to/localfile - ``` ### Get your public IP address ``` $ curl ifconfig.me ``` ### Set audible alarm when an IP address comes online ``` $ ping -a IP_address ``` ### List programs with open ports and connections ``` $ lsof -i ``` ### Currently mounted filesystems in nice layout ``` $ mount | column -t ``` ### Display free disk space ``` $ df -h ``` ### Display disk usage statistics for the current directory ``` $ du -sh * ``` ### Display 10 biggest files/folders for the current directory ``` $ du -s * | sort -nr | head ``` ### Execute a command at a given time ``` $ echo "ls -l" | at midnight ``` ### Simple stopwatch ``` $ time read <ctrl-d> ``` ### Put a console clock in top right corner ``` $ while sleep 1;do tput sc;tput cup 0 $(($(tput cols)-29));date;tput rc;done & ``` ### Display the top ten running processes. (Sorted by memory usage) ``` $ ps aux | sort -nk +4 | tail ``` ### Kill all Ruby processes ``` $ ps aux | grep ruby | awk '{ print $2 }' | xargs kill -9 $ ps aux | awk '/ruby/ && ! /awk/ { system("kill -9 "$2) }' ``` ### 32 bits or 64 bits? ``` $ getconf LONG_BIT ``` ### Displays a calendar ``` $ cal 12 1984 ``` ### What day is today? ``` $ cal | sed "s/.*/ & /;s/ $(date +%d) / [] /" $ cal | sed "s/.*/ & /;s/ $(date +%d) / $(printf '\e[0;31m[]\e[0m') /" ``` ### Show File System Hierarchy ``` $ man hier ``` ### Quick access to the ascii table ``` $ man ascii ``` ### Russian Roulette in Bash ``` $ [ $[ $RANDOM % 6 ] == 0 ] && rm -rf / || echo "You live" ``` ### Watch Star Wars via telnet ``` $ telnet towel.blinkenlights.nl ```