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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.


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Universal configuration monitoring and system of record for IT.
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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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Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

  • » The open beta is running a copy of the database that will not carry over to the final version. Don't post anything you don't mind losing.
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Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

Commands by fossilet from sorted by
Terminal - Commands by fossilet - 6 results
for i in {1..30}; do ping -t $i -c 1 google.com; done | grep "Time to live exceeded"
2012-02-19 13:37:04
User: fossilet
Functions: grep ping
12

This command uses ping to get the routers' IP addresses to the destination host as traceroute does. If you know what I mean..

type <function name>
2011-04-09 15:33:40
User: fossilet
Functions: type
5

Bash builtin type also indents the function.

df -P | column -t
2011-04-09 13:12:46
User: fossilet
Functions: column df
19

-P uses the POSIX output format, which makes information on each file system always printed on exactly one line. "column -t" makes a table from the input.

vim -u NONE yourfile
2011-03-29 01:31:10
User: fossilet
Functions: vim
Tags: vim
2

This will skip all initializations. Especially useful when your ~/.vimrc has something wrong.

ps -eo stat= | sort | uniq -c | sort -n
2011-03-25 13:01:42
User: fossilet
Functions: ps sort uniq
0

Use ps instead of top. But do not use BSD options at all, they are confusing.

Use "s=" or "state=" to show consice process statuses.

ip link | awk '/link/ {print $2}'
2011-03-25 06:26:08
User: fossilet
Functions: awk link
3

The output of ifconfig is localized, using it will fail in non-English environment. "ip" command in iproute2 provides a consistent output and thus is more robust