Commands by grapsus

Commands by grapsus (2)

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find an X11 window by its title and highlight it

Useful for window managers like i3. With a plugin like Mailbox Alert on can run this command each time a new mail arrives and it will be lighlighted by the window manager.
This is sample output - yours may be different.
0

xdotool search --name Thunderbird set_window --urgency 1 %@

grapsus · 2013-10-16 16:22:56 8
print all available make targets
This is sample output - yours may be different.
0

make --print-data-base --dry-run | awk -F':' '/^[a-zA-Z0-9][^$#\/\t=]*:([^=]|$)/ {split($1,A,/ /);for(i in A)print A[i]}'

grapsus · 2013-10-07 12:39:25 6

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Show all listening and established ports TCP and UDP together with the PID of the associated process

Easy to remenber. Fot TCP only use: netstat -plant

Quick and dirty convert to flash

This converts any media ffmpeg handles to flash. It would actually convert anything to anything, it's based on the file extension. It doesn't do ANY quality control, sizing, etc, it just does what it thinks is best. I needed an flv for testing, and this spits one out easily.

grep for minus (-) sign

Use flag "--" to stop switch parsing

Sed can refference parts of the pattern in the replacement:

Find the package that installed a command

Destroy all disks on system simultaneously

This command will use the fdisk utility to find all block devices on your system, and overwrite them with data from the /dev/urandom non-blocking random number generator. CAUTION: This will irrevocably erase EVERY SINGLE physical block storage device visible to the fdisk utility, including plugged USB devices, RAID sets, LVM, etc.

File rotation without rename command

Rotates log files with "gz"-extension in a directory for 7 days and enumerates the number in file name. i.e.: logfile.1.gz > logfile.2.gz I needed this line due to the limitations on AIX Unix systems which do not ship with the rename command.

Show crontabs for all users

This is flatcaps tweaked command to make it work on SLES 11.2

Creating A Single Image Video With Audio via ffmpeg

Binary digits Matrix effect

Prints 0's and 1's in The Matrix style. You can easily modify to print 0-9 digits using $RANDOM %10 insted of %2.

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