All commands (14,187)

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commandlinefu.com is the place to record those command-line gems that you return to again and again. 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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Instant mirror from your laptop + webcam (fullscreen+grab)
This directly puts the "mirror" into fullscreen, and lets you take photos by pressing the 's' key. I bet appearance conscious people will have keyboard shortcut for this command by now.

Delete all empty lines from a file with vim
If you need to delete lines that may contain space characters (such as tabs or spaces) as well as empty ones, try: $:v/\S/d Just an alternative.

Uptime in minute

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Buffer in order to avoir mistakes with redirections that empty your files
A common mistake in Bash is to write command-line where there's command a reading a file and whose result is redirected to that file. It can be easily avoided because of : 1) warnings "-bash: file.txt: cannot overwrite existing file" 2) options (often "-i") that let the command directly modify the file but I like to have that small function that does the trick by waiting for the first command to end before trying to write into the file. Lots of things could probably done in a better way, if you know one...

Recover cvs ": no such repository" error

To find the LDAP clients connected to LDAP service running on Solaris

Create a backup of the file.
It will create a backup of the filename. The advantage is that if you list the folder the backups will be sorted by date. The command works on any unix in bash.

Locate config files of the program
Locate config files of the program. May not be used for interactive programs like vim.

Google text-to-speech in local language or language of choice
Google text-to-speech in your local language or in language of choice via country code switch (ISO 639-1).


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