commandlinefu.com is the place to record those command-line gems that you return to again and again.
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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.
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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:
Move efficiently between directories.
This command adds a couple of extra features to cd, without affecting normal use.
CDPATH use is also unaffected. It introduces and environment variable CDDIR which is used as an alternate home directory.
Note: I don't want to alter $HOME because then all my dot files will move.
Change directory to "dir" (using CDPATH if necessary)
Change directory to "dir" (containing folder of "file.txt")
This allows you to cut'n'paste, or use
CDDIR is unset
Change directory to $HOME
Change directory to /home/flatcap/work
For convenience, put the command, and the following, in your .bashrc or .bash_profile
find broken symbolic links
Use Curl to upload documents from your linux servers to MS Sharepoint servers.
the -h option of du and sort (on appropriate distrib) makes output "Human" readable and still sorted by "reversed size" (sort -rh)
Execute commands serially on a list of hosts. Each ssh connection is made in the background so that if, after five seconds, it hasn't closed, it will be killed and the script will go on to the next system.
Maybe there's an easier way to set a timeout in the ssh options...
The other commands were good, but they included packages that were installed and then removed.
This command only shows packages that are currently installed, sorts smallest to largest, and formats the sizes to be human readable.
Prints line numbers making it easier to see long lines that wrap in your terminal and extra line breaks at the end of a file.
May require GNU find.
Using a GUI file managers you can merge directories (cut and paste). This command roughly does the same (it doesn't ask for confirmation (no problem for me) and it doesn't clean up the empty SRC directories (no problem, trivial).
probably does the same:
cp -l SRC TARGET; rm -rf SRC
cat without comments
Change your Desktop background/wallpaper with feh lightweight command.
fill background directory with appropriate content.
Well, this is quite useful for testing if your hardware watchdog is working properly.
Output should be two JPG files named like "output-1.jpg" and "output-2.jpg". The convert command is part of ImageMagick so you'll need that and dependent packages installed to use it.
This is especially useful for adding changes to a temporary repo, such as a Gist. Avoid using this when collaborating with others.
I'm the author of PM2 and wrote this tool, and I'm please to share it here.
Github project link: https://github.com/Unitech/pm2
Handy use of bc in the command line. No need to get 'into' the bc to perform calculations