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.
If you have a new feature suggestion or find a bug, please get in touch via http://commandlinefu.uservoice.com/
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.
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.
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:
'ac' is included in the package 'acct', which is described as "The GNU Accounting utilities for process and login accounting". Other interesting flags are:
* print statistics for a specified user
ac -d username
* print statistics for all the users
With my command, the output is also printed in a sexagesimal, more readable, style.
Returns the number of running httpd processes
this version is going to work on redhat/centos/suse AND ubuntu/debian systems
Also shows files as they are found. Only works from a tty.
Do this with caution.
check apache2 status with a lot of details
A simple way to find all machines on a network subnet is pinging a broadcast address (-b flag). First run ifconfig ifconfig. Then use "Bcast" address and '-b' flag in ping
Sometimes you just want to operate on files that were created after specific date. This command consists of 3 commands:
- Create a dummy file with the custom date
- Find all files with "creation time" further than our custom date by using `-newer` find option. Add your crazy stuff here, like moving, deleting, printing, etc.
- Remove the dummy file
Citrix XenServer 5.6, can be piped to grep for more interesting output
Simple use of find and grep to recursively search a directory for files that contain a certain term.
Use this command if you want to control the size of the files in human readable, every one second.
Gets the Hardware UUID of the current machine using system_profiler.
`ls` alternative `exa`, with most info printed and passed through less with the `-R` (raw) option, to preserve colour output https://github.com/ogham/exa
You can add or remove `-@` to print extended attributes for files that have them.