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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Check reverse DNS
The +short option should make dig less chatty.

Set laptop display brightness
Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

Save an HTML page, and covert it to a .pdf file
Uses htmldoc to perform the conversion

list block devices
Shows all block devices in a tree with descruptions of what they are.

Read a tcpdump file and count SYN packets to port 80, Order column by destination.

mailx to send mails from console
It is the best way i found to send a mail from the console in my centos server.

Start a terminal with three open tabs
If you launch gnome-terminal manually, you can start with three open tabs

Set laptop display brightness
Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

Chrome sucks

Compute the average number of KB per file for each dir
Use this to find identify if dirs mostly contain large or small files.


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