Commands using grep (1,935)

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validate xml in a shell script using xmllint

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

One liner to kill a process when knowing only the port where the process is running

draw line separator (using knoppix5 idea)
This is a slightly modified version of the knoppix5 user oneliner (https://www.commandlinefu.com/commands/view/24571/draw-line-separator).

Find the package that installed a command

Removing Prefix from File name
Removing Course name prefix added

Replace Every occurrence of a word in a file
Replace 'this' with 'that'

Run a ext4 file system check and badblocks scan with progress info
Nothing fancy, just a regular filesystem scan that calls the badblocks program and shows some progress info. The used options are: -c ? check for bad sectors with badblocks program -D ? optimize directories if possible -f ? force check, even if filesystem seems clean -t ? print timing stats (use -tt for more) -y ? assume answer ?yes? to all questions -C 0 ? print progress info to stdout /dev/sdxx ? the partition to check, (e.g. /dev/sda1 for first partition on first hard disk) NOTE: Never run fsck on a mounted partition!

Use the arguments used in the last command
Very basic, but who knows.. mkdir !$ should work too, only uses 'the last' argument. !-2 executes cd Desktop/Notes again. More tips in 'man history'

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"


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