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commandlinefu.com is the place to record those command-line gems that you return to again and again.
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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!
Functions
- access
- acpi
- admin
- alias
- amixer
- aplay
- apropos
- apt
- ar
- arch
- arecord
- arp
- as
- at
- atq
- atrm
- aumix
- awk
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- bash
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- cdparanoia
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- chkconfig
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- ls
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- m4
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- make
- man
- manpath
- mcd
- md5sum
- merge
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- mkdir
- mkdosfs
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- mkfifo
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- mknod
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- modinfo
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- more
- mount
- mpg123
- mpg321
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- named
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- nice
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- objdump
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- python
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- rm
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- route
- rpm
- rsync
- scanimage
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- screen
- script
- sdiff
- sed
- sendmail
- sensors
- seq
- set
- setleds
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- sftp
- sh
- sha1sum
- shift
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- shred
- shutdown
- size
- skill
- sleep
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- sort
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- sshd
- stat
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- strings
- strip
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- su
- sudo
- sum
- swapoff
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- sysctl
- tabs
- tac
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- tar
- taskset
- tcpdump
- tee
- telnet
- test
- time
- times
- tload
- top
- touch
- tput
- tr
- traceroute
- trap
- true
- tty
- tune2fs
- type
- ulimit
- umask
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- unalias
- uname
- uniq
- unlink
- unset
- uptime
- useradd
- userdel
- usermod
- users
- usleep
- uudecode
- uuencode
- val
- vi
- vim
- vmstat
- wait
- wall
- watch
- wc
- wget
- what
- whatis
- whereis
- which
- who
- whoami
- whois
- write
- xargs
- yes
- zcat
- zdump
- zgrep
- zless
Terminal - All commands - 12,422 results
allows you to use floating point operations in shell scripts
du only accepts lines ending with a NUL, which can be a pain to create. This solves that issue.
The `-q' arg forces tail to not output the name of the current file
You can tell GCC to automatically select optimization commands and produce optimized code for the local machine (the one compiling the code), but you can't normally see what switches have been selected and used unless you append a "-v" and pause compilation.
Shows a less detailed output, made only of the process tree and their pids.
If you're like some individuals who rely on ndiswrapper and cannot use kismet, this command may be of service.
watch -n .5 "iwlist wlan0 scan | egrep 'ESSID|Encryption'"
Or...
watch -n .5 "iwlist wlan0 scan | egrep 'ESSID|Encryption' | egrep 'linksys'"
:-) Hopefully you'll find some dd-wrt compatible routers.
Today I learned that commandlinefu.com is not a alone in its conquest for further the knowledge about the command line. Allow me to introduce you to http://shell-fu.org/
doesn't require "at", change the "2h" to whatever you want... (deafult unit for sleep is seconds)
Stores the currently active iptables rules to a file that will be applied upon reboot
If you don't save the rule set it won't be applied during a reboot
Locally watch MySQL process list update every 5s on a remote host. While you watch pipe to a file. The file out put is messy though but hey at least you have a history of what you see.
Enable 'sleep' function in Windows environment where this does not exist, although not exact in time. (there is a delay for each ping) This is a simple way to separate commands with a time-period.
Character: "?" is the Byte Order Mark (BOM) of the Unicode Standard.
Specifically it is the hex bytes EF BB BF, which form the UTF-8 representation of the BOM,
misinterpreted as ISO 8859/1 text instead of UTF-8.
Whereas ^V is CTRL-V.
converts a dos file to unix by removing 0x13 characters
This does the same thing as many of the 'grep' based alternatives but allows a more finite control over the output. For example if you only wanted the process ID you could change the command:
ps -ef | awk '/mingetty/ && !/awk/ {print $2}'
If you wanted to kill the returned PID's:
ps -ef | awk '/mingetty/ && !/awk/ {print $2}' | xargs -i kill {}