All commands (13,599)
-
Useful if you need to add another key and you using pem files (typical in AWS EC2 Instances). If you use it in EC2 instances, remember that password authentication is disabled, so you have to use the first key generated when you generated the instance
0ssh-keygen -y -f user-key.pem | ssh user@host -i already_on_remote_server_key.pem 'cat >> ~/.ssh/authorized_keys' -
0alias tree='pwd;find . -path ./node_modules -prune -o -print | sort | sed '\''1d;s/^\.//;s/\/\([^/]*\)$/|--\1/;s/\/[^/|]*/| /g'\'''
-
{f%*.zip} strips off the extension from zip filenames0for f in *.zip; do unzip -d "${f%*.zip}" "$f"; done -
0mkdir -p /path/folder{1..4}
-
Instead of typing separate commands to create various subfolders, we can create multiple subfolders by listing them between brackets and separated by commas. Show Sample Output
0mkdir -p /path/{folder1,folder2,folder3,folder4} -
1nmcli device wifi list
-
Http server on port other than 8000 Show Sample Output
0python -m SimpleHTTPServer 8080 -
real 0m0.014s user 0m0.001s sys 0m0.014s
-1time <command> -
add route default gateway on shell
0route add default gw 192.168.10.1 //OR// ip route add default via 192.168.10.1 dev eth0 //OR// ip route add default via 192.168.10.1 -
A function for retrieving and displaying a list of synonyms for a German word or phrase. Show Sample Output
0desyno(){ wget -q -O- https://www.openthesaurus.de/synonyme/search\?q\="$*"\&format\=text/xml | sed 's/>/>\n/g' | grep "<term term=" | cut -d \' -f 2 | paste -s -d , | sed 's/,/, /g' | fold -s -w $(tput cols); } -
0ssh-keygen -y -f privatekey.pem > publickey.pem
-
On laptops featuring hybrid graphics and using the free X drivers, the DRI_PRIME variable indicates which GPU to run on. This alias allows to utilize the faster discrete GPU without installing proprietary drivers. Show Sample Output
1alias game='DRI_PRIME=1' -
0gunzip -c file.tar.gz | tar -xvf -
-
1exiftool '-MDItemFSCreationDate<CreationDate' '-FileModifyDate<CreationDate' '-filename<CreationDate' -d %Y-%m-%d_%H-%M-%S%%+c.%%le . -ext mov
-
This shell calculator uses POSIX features only and is therefore portable. By default the number of significant figures is limited to 8 with trailing zeros stripped, resembling the display of a basic pocket calculator. You might want to increase this to 12 to emulate a scientific calculator. Show Sample Output
0calc(){ printf "%.8g\n" $(printf "%s\n" "$*" | bc -l); } -
Prints the path/filename and sparseness of any sparse files (files that use less actual space than their total size because the filesystem treats large blocks of 00 bytes efficiently). Uses a Tasker-esque field separator of more than one character to ensure uniqueness. Show Sample Output
0find -type f -printf "%S=:=%p\n" 2>/dev/null | gawk -F'=:=' '{if ($1 < 1.0) print $1,$2}' -
Checks whether IPv6 is enabled system-wide by reading from procfs. Show Sample Output
1printf "IPv6 is "; [ $(cat /proc/sys/net/ipv6/conf/all/disable_ipv6) -eq 0 ] && printf "enabled\n" || printf "disabled\n" -
Install with `npm install unix-permissions`. https://github.com/ehmicky/unix-permissions Unix file permissions can take many shapes: symbolic (`ug+rw`), octal (`660`) or a list of characters (`drw-rw----`). `unix-permissions` enables using any of these (instead of being limited to a single one) with any CLI command. Show Sample Output
0unix-permissions convert.stat $(unix-permissions invert $(umask)) -
0git log -p --name-only --follow <file>
-
3sudo tcpdump -nn -l port 25 | grep -i 'MAIL FROM\|RCPT TO'
-
1sudo tcpdump -s 0 -A -n -l | egrep -i "POST /|pwd=|passwd=|password=|Host:"
-
1sudo tcpdump -nn -v port ftp or ftp-data
-
3sudo tcpdump port http or port ftp or port smtp or port imap or port pop3 or port telnet -l -A | egrep -i -B5 'pass=|pwd=|log=|login=|user=|username=|pw=|passw=|passwd=|password=|pass:|user:|username:|password:|login:|pass |user '
-
Displays live hosts on the same network as the local machine with their hostnames and IP addresses. This command is IPv6 and multiple network adapter safe and does not rely on awk or sed, however it requires the "nmap" package installed. Might not work on OSX. Example alias for shell startup file:
alias livehosts='nmap -sP "$(ip -4 -o route get 1 | cut -d " " -f 7)"/24 | grep report | cut -d " " -f 5-'Show Sample Output-2nmap -sP "$(ip -4 -o route get 1 | cut -d ' ' -f 7)"/24 | grep report | cut -d ' ' -f 5- -
0ls -sSh /path | head
- 1 2 3 > Last ›
What's this?
commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.
Check These Out
Stay in the loop…
- Follow the Tweets.
-
Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10 - Subscribe to the feeds.
-
Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):
Subscribe to the feed for:
- » all commands
- » commands with 3 up-votes (commandlinefu3)
- » commands with 10 up-votes (commandlinefu10)