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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Terminal - All commands - 12,420 results
iw dev ath0 station dump
2017-01-09 00:50:49
Tags: wireless

When the wireless card is in AP mode, list the users which are connected to the network.

It uses the new nl80211 based CLI configuration utility for wireless devices.

It can be used, for example, in a dd-wrt based router through a telnet session to obtain client information.

git push --set-upstream origin master
2017-01-09 00:32:14
Tags: git

After cloning an empty repository on the client ("git clone" just after "git init", for instance), "git push" fails.

In order to be able to push to this repository for the first time, you need to run the above command. It will link your local "master" branch to the "master" branch in the origin server, and push the changes.

This is only necessary only for the first push; after that, you can use just the commands "git push" or "git pull" in order to do this operations.

tr -d '\r' < vmargs.txt | tr '\n' ' '
2016-12-31 18:20:03
User: wytten12
Functions: tr

Read vmargs.txt, which is a text file that could either be DOS-style (\r\n) or UNIX-style (\n) line endings and join the lines with a space separator. Can this be shortened/made more elegant?

ftagmarks(){ jq -r --arg t "$1" '.children[] as $i|if $i.root == "tagsFolder" then ([$i.children[] as $j|{title: ($j.title), urls: [$j.children[].uri]}]) else empty end|.[] as $k|if ($k.title|contains($t)) then $k.urls else empty end|.[]?' "$2"; }
2016-12-24 15:12:04
User: qwertyroot
Functions: as

# Usage: ftagmarks TAG BOOKMARKS.JSON

ftagmarks Bash ~/.mozilla/firefox/*.default/bookmarkbackups/bookmarks-*.json

Tag can be partial matching, e.g. input 'Bas' or 'ash' will match 'Bash' tag.

# Exact tag matching:

ftagmark(){ jq -r --arg t "$1" '.children[] as $i|if $i.root == "tagsFolder" then ([$i.children[] as $j|{title: ($j.title), urls: [$j.children[].uri]}]) else empty end|.[] as $k|if $k.title == $t then $k.urls else empty end|.[]?' "$2"; }

Usage: ftagmark TAG BOOKMARKS.JSON

# List all tags:

ftagmarkl(){ jq -r '.children[] as $i | if $i.root == "tagsFolder" then $i.children[].title else empty end' "$1"; }

Usage: ftagmarkl BOOKMARKS.JSON

# Requires: `jq` - must have CLI JSON processor


pv -tpreb /dev/sdc2 | dd of=/dev/sdb2 bs=64K conv=noerror,sync
2016-12-22 03:18:09
User: 4fthawaiian
Functions: dd

uses the wonderful 'pv' command to give a progress bar when copying one partition to another. Amazing for long running dd commands

sed 's/^\([^>.]\)/#\1/;s/^>>> //;s/^\.\.\./ /'
2016-12-06 15:23:02
User: miniker84
Functions: sed

Used to copy and paste a terminal buffer of a python interactive session into an editor

zgrep 'pattern' /var/logs/apache2/access.log* | awk '{print $7}' | sort -n | uniq -c | sort -rn
ls -lart|lolcat -a
2016-11-18 02:45:39
User: knoppix5
Functions: ls

(example above is the 'ls' command with reduced output speed)

cat matching_files.txt | xargs sed -i '' "s/require('global-module')/require('..\/some-folder\/relative-module')/"
whatinstalled() { which "[email protected]" | xargs -r readlink -f | xargs -r dpkg -S ;}
whatinstalled () { local cmdpath=$(realpath -eP $(which -a $1 | grep -E "^/" | tail -n 1) 2>/dev/null) && [ -x "$cmdpath" ] && dpkg -S $cmdpath 2>/dev/null | grep -E ": $cmdpath\$" | cut -d ":" -f 1; }
2016-11-08 16:13:10
User: lordtoran
Functions: cut grep tail which

Put this one-line function somewhere in your shell init, re-login and try

whatinstalled <command>

This is an elaborate wrapper around "dpkg -S", with numerous safeguards. Symlinks and command aliases are resolved. If the searched command is not an existing executable file or was installed by some other means than dpkg/apt, nothing is printed to stdout, otherwise the package name.

grep -Hrn "text" .
for i in `pip list -o --format legacy|awk '{print $1}'` ; do pip install --upgrade $i; done
free && sync && echo 3 > /proc/sys/vm/drop_caches && free
grep -c ".*" filename
2016-10-26 22:32:23
User: zlemini
Functions: grep

Returns the number of lines in a file, emulates "wc -l" behavior with grep.

alias bman='man --html=x-www-browser'
2016-10-23 17:59:47
User: lordtoran
Functions: alias
Tags: man groff

An easy alias for opening a manpage, nicely HTML formatted, in your set internet browser.

If you get a "command exited with status 3" error you need to install groff.

xmlstarlet ed -u '//food[calories="650"]/calories' -v "999" simple.xml
id <username> | sed s/' '/'\n'/g | sed s/,/',\n '/g | sed s/'('/' ('/g | sed s/uid/' uid'/g | sed s/gid/' gid'/g | sed s/=/' = '/g
printf -vl "%${COLUMNS:-`tput cols 2>&-||echo 80`}s\n" && echo ${l// /-};
2016-09-25 10:37:20
User: AskApache
Functions: echo printf

Unlike other methods that use pipes and exec software like tr or sed or subshells, this is an extremely fast way to print a line and will always be able to detect the terminal width or else defaults to 80. It uses bash builtins for printf and echo and works with printf that supports the non-POSIX `-v` option to store result to var instead of printing to stdout.

Here it is in a function that lets you change the line character to use and the length with args, it also supports color escape sequences with the echo -e option.

function L() { local l=; builtin printf -vl "%${2:-${COLUMNS:-`tput cols 2>&-||echo 80`}}s\n" && echo -e "${l// /${1:-=}}"; }

With color:

L "`tput setaf 3`="

1. Use printf to store n space chars followed by a newline to an environment variable "l" where n is local environment variable from $COLUMNS if set, else it will use `tput cols` and if that fails it will default to 80.

2. If printf succeeds then echo `$l` that contains the chars, replacing all blank spaces with "-" (can be changed to anything you want).

From: http://www.askapache.com/linux/bash_profile-functions-advanced-shell.html http://www.askapache.com/linux/bash-power-prompt.html

aws cloudfront list-distributions | jq -r '.DistributionList | .Items | .[] | .Id + " " + .Aliases.Items[]'
2016-09-19 06:36:59
User: hendry
Tags: aws jq awscli

Looking up the id of a CF domain can be painful. Not anymore with this tip.

pip freeze --local | grep -v '^\-e' | cut -d = -f 1 | xargs -n1 pip install -U
find . -name '*.desktop' | sed s/[^/]*\.desktop$// | uniq -c | sort -g
2016-09-16 12:22:38
User: T4b
Functions: find sed sort uniq

In this case searches for where .desktop files are stored. The resulted is a sorted list of the top directories containing such files.

Xephyr -keybd ephyr,,,xkbmodel=evdev,xkblayout=it -listen tcp -ac -reset -output VGA1 :5
2016-09-12 15:59:07
User: hute37
Tags: X awesome Xephyr

# from xfce session to avoid keyboard shortcut clashing

# start xephyr in VGA1 monitor:

Xephyr -keybd ephyr,,,xkbmodel=evdev,xkblayout=it -listen tcp -ac -reset -output VGA1 :5

# then start an xterm locally

export DISPLAY=:5.0


# and remote ssh (no X fw needed if local tcp with access disablesd (-tcp -ac) => UNSECURE!!!

ssh remote-host

export DISPLAY=notebook:5.0

xrdb -merge ~/.Xresources

xterm -geometry 132x50-0+0

# start awesome

dbus-launch $(which awesome)

dex -a -e Awesome

for y in {1..10}; do for x in {1..10}; do echo -n "| $x*$y=$((y*x)) "; done; echo; done|column -t
2016-09-07 12:31:18
User: lpalgarvio
Functions: column echo

The multiplication table for math study

find . -name \*.pyc -delete