Hide

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again.

Delete that bloated snippets file you've been using and share your personal repository with the world. 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.


Get involved!

You can sign-in using OpenID credentials, or register a traditional username and password.

First-time OpenID users will be automatically assigned a username which can be changed after signing in.

UpGuard checks and validates configurations for every major OS, network device, and cloud provider.
Hide

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:

Hide

News

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!
Hide

Top Tags

Hide

Functions

Commands by qwertyroot from sorted by
Terminal - Commands by qwertyroot - 3 results
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
0

# 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

http://stedolan.github.io/jq

sh -c 'url="http://youtu.be/MejbOFk7H6c"; vid="`for i in ".*youtu\.be/\([^\/&?#]\+\)" ".*youtu.\+v[=/]\([^\/&?#]\+\)" ".*youtu.\+embed/\([^\/&?#]\+\)"; do expr "${url}" : "${i}"; done`"; if [ -n "${vid}" ]; then echo ${vid}; else echo "${url}"; fi'
2013-09-04 19:33:09
User: qwertyroot
Functions: echo sh
2

url can be like any one of followings:

url="MejbOFk7H6c" url="http://youtu.be/MejbOFk7H6c" url="https://youtube.com/watch?feature=player_embedded&v=MejbOFk7H6c#t" url="//www.youtube.com/v/MejbOFk7H6c?hl=ru_RU&version=3&rel=0" url="http://www.youtube.com/embed/MejbOFk7H6c?feature=player_embedded"

If url mismatching, whole url will be returned.

for i in '/tmp/file 1.txt' '/tmp/file 2.jpg'; do ln -s "$i" "$i LINK"; done
2013-08-02 08:30:50
User: qwertyroot
Functions: ln
0

Replace

'/tmp/file 1.txt' '/tmp/file 2.jpg'

with

"$NAUTILUS_SCRIPT_SELECTED_FILE_PATHS"

for Nautilus script

Or with

%F

for Thunar action

If you linking the symlinks itself, but want to link to source files instead of symlinks, use

"`readlink -m "$i"`"

instead of

"$i"

like this:

for i in '/tmp/file 1.txt' '/tmp/file 2.jpg'; do ln -s "`readlink -m "$i"`" "$i LINK"; done

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~