All commands (14,187)

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.

Share Your Commands


Check These Out

Calculate pi with specific scale
a() function in bc is for arctangent, available if using -l option included.

Open the last file you edited in Vim.

Sort a one-per-line list of email address, weeding out duplicates

add all files not under version control to repository
This should handle whitespaces well and will not get confused if your filenames have "?" in them

Run entire shell script as root
Placing sudo in the shebang line of a shell script runs the entire thing as root. Useful for scripts designed to, e.g. automate system upgrades or package manager wrappers — makes prepending everything with sudo no longer necessary

Get info on RAM Slots and Max RAM.

Quickly analyze apache logs for top 25 most common IP addresses.
This command is much quicker than the alternative of "sort | uniq -c | sort -n".

Check a server is up. If it isn't mail me.
This version uses netcat to check a particular service.

rename anime fansubs
renames Anime Episodes to files, that can be parsed by sonarr & co

Watch command
Repeat command after every 2 secs


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: