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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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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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Commands by StefanLasiewski from sorted by
Terminal - Commands by StefanLasiewski - 6 results
info foo |less
2013-09-12 16:49:08
Functions: info
Tags: less info

This command is similar to the above, but is much simpler to remember. Sure, it's isn't as precise as the parent command, but most people aren't going to remember those --flags anyways unless you stick it into your .bashrc on every single system that you manage.

unset MANPATH; manpath >/dev/null
2010-07-02 19:45:27
Functions: manpath unset
Tags: man PATH

If I type 'man something', I want it to find the manpage in the same order as my PATH.

You can add something like this to your .bashrc


# Add my MacPorts, my personal utilities and my company utilities to my PATH.

export PATH=$PATH:/opt/local/bin:$HOME/bin:/our_company_utils/bin/

# Now set the manpath based on the PATH, after man(1) parses man.conf

# - No need to modify man.conf or manually modify MANPATH_MAP

# - Works on Linux, FreeBSD & Darwin, unlike /etc/manpaths.d/

# Must unset MANPATH first. MANPATH is set on some systems automatically (Mac),

# which causes manpath to ignore the values of PATH like /opt/local/bin (MacPorts).

# Also MANPATH may be deprecated. See "SEARCH PATH FOR MANUAL PAGES" in man(1)


# manpath acts differently on Solaris, FreeBSD, MacOSX & GNU. This works everywhere.

manpath >/dev/null


Note that MacOSX, FreeBSD & Linux have fancier ways to do some of this. (e.g. 'man --path' or 'man -q'), but this command is more universal and should work everywhere.

*/5 * * * * root /usr/local/nagios/sbin/nsca_check_disk 2>&1 |/usr/bin/logger -t nsca_check_disk
2010-07-02 00:47:05

This command will log the output of your simple cronjobs to syslog, and syslog will take it from there. Works great for monitoring scripts which only produce simple output.


* This can be used by regular users, without modifying system files like /etc/syslog.conf

* Reduce cron spam to [email protected] (Please stop spaming the sysadmins)

* Uses common tools like syslog (and logrotate) so that you don't need to maintain yet another krufty logfile.

* Still ensures that the output is logged somewhere, for posterity. Perhaps it's stored the secure, central syslog server, for example.

* Seems to work fine on Ubuntu, CentOS, FreeBSD & MacOSX

TZ=PST8PDT+72 date '+%Y_%m_%d'
2010-07-02 00:29:27
Functions: date
Tags: date nongnu

This command prints the Date (Not time) from 3 days ago (72 hours ago).

This works on systems without GNU date (MacOSX , Solaris, FreeBSD).

alias histdel='history -d $((HISTCMD-2)) && history -d $((HISTCMD-1))'
2010-07-02 00:20:44
Functions: alias

I rarely need this, but I have a hard time remembering the command when I need it.

Admit it. This has happened to you. Yes this is bad, and you better clean up now.

Borrowed from http://thoughtsbyclayg.blogspot.com/2008/02/how-to-delete-last-command-from-bash.html

info gpg |less
2010-07-01 23:44:15
Functions: gpg info
Tags: less info

I like man pages, and I like using `less(1)` as my pager. However, most GNU software keeps the manual in the 'GNU Texinfo' format, and I'm not a fan of the info(1) interface. Just give me less.

This command will print out the info(1) pages, using the familiar interface of less!