Commands by bsb (1)

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

Symlink all files from a base directory to a target directory
Symlinks all files in the base directory to the target directory then lists all of the created symlinks.

Make changes in .bashrc immediately available

Copy via tar pipe while preserving file permissions (cp does not!; run this command with root!)
cp options: -p will preserve the file mode, ownership, and timestamps -r will copy files recursively also, if you want to keep symlinks in addition to the above: use the -a/--archive option

remove empty lines in place with backup
Modify file in place to remove empty lines and create a backup of the original with the extension .bak

shutdown pc in 4 hours without needing to keep terminal open / user logged in.
This way, you can specify how many hours in which you want your machine to shut down.

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.

check open ports without netstat or lsof

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.

Monitor memory fine-grained usage (e.g. firefox)
Sometimes top/htop don't give the fine-grained detail on memory usage you might need. Sum up the exact memory types you want


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