Commands by forumwale (0)

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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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count how many cat processes are running

this toggles mute on the Master channel of an alsa soundcard

Delete leading whitespace from the start of each line

Rename all images in current directory to filename based on year, month, day and time based on exif information

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Password Generation
Produces secure passwords that satisfy most rules for secure passwords and can be customized for correct output as needed. See "man pwgen" for details.

clear current line

Print out a man page
man -t manpagename gives a postscript version of said man page. You then pipe it to ls, and assuming you have cups set up, it prints in your default printer.

Fetch the requested virtual domains and their hits from log file
The command will read the apache log file and fetch the virtual host requested and the number of requests.

Netstat Connection Check
This command does a tally of concurrent active connections from single IPs and prints out those IPs that have the most active concurrent connections. VERY useful in determining the source of a DoS or DDoS attack.


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