Commands by rzlvmp (0)

  • bash: commands not found

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Hide the name of a process listed in the `ps` output
$ exec -a $NAME $COMMAND $ARGS `your_cmd -erase_all_files` is the real process, but harmless-looking getty appears in the process table. Never actually had a need to do this, but interesting nonetheless... Tested in bash, dash. $ -a $NAME "pass NAME as the zeroth argument to COMMAND", i.e. customise the name of the process (as commonly seen with `ps`)

Verify MD5SUMS but only print failures
All valid files are withheld so only failures show up. No output, all checks good.

using scanner device from command line
you have to replace "mustek_usb" with the scanner found by `scanimage -l`

Sort a character string
Sorts a character string, using common shell commands.

Fix subtitle timing (for .sub files)
Fix a microdvd (.sub) subtitle timing by making the phrases to appear 600 frames earlier.

print multiplication formulas
seq -s ' ' 1 9 | sed -n ':a;p;s/ *\w$//;h;/^$/t;b a;q' | tac | awk '{for(i=1;i

Most used command

Copy file to a Windows/Samba share without mounting it
This commando copies the file (which must reside in the current directory) to //<server>/<share-name>/<subdirectory>/<file> through the CIFS protocol (Samba share or Windows Share). It doesn't require you to mount the filesystem first. --directory "<subdirectory>" may be omitted in order to copy the file the the root of the share. The "%password" part may also be omitted. If doing so, smbclient will ask for the password interactively. To copy a file from a Windows/Samba share, change "put" for "get". $ smbclient --user=user%password --directory "<subdirectory>" --command "get <file>" //<server>/<share-name>

Screencast with ffmpeg x11grab
requires ffmpeg & xwininfo to be installed replace hw:0,0 with pulse if you like using pulseaudio press q to quit

Recursively grep thorugh directory for string in file.
Print line numbers also, so you don't have to search through the files once its open for the string you already grepped for.


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