Commands tagged gtk2 (2)

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Go to parent directory of filename edited in last command
Uses the last argument of the last executed command, and gets the directory name from it. Use $!:t for the filename alone, without the dirname.

Query well known ports list
Uses the file located in /etc/services

Get max number of arguments
Get max number of arguments that can be accepted by the exec() system call.

ls -hog --> a more compact ls -l
I often deal with long file names and the 'ls -l' command leaves very little room for file names. An alternative is to use the -h -o and -g flags (or together, -hog). * The -h flag produces human-readable file size (e.g. 91K instead of 92728) * The -o suppresses the owner column * The -g suppresses the group column Since I use to alias ll='ls -l', I now do alias ll='ls -hog'

grep -v with multiple patterns.
That's what the sed command should've been, sorry.

Suspend to ram
Using sys

convert a line to a space

add the result of a command into vi
in command mode, navigate your cursor to the line where you want the command output to appear, and hit "!!". No need to enter edit mode or even type a ":" (colon).

Calculate sum of N numbers (Thanks to flatcap)

Unix alias for date command that lets you create timestamps in ISO 8601 format
I often need to add a timestamp to a file, but I never seem to remember the exact format string that has to be passed to the date command to get a compact datetime string like 20090220T231410 (i.e yyyymmddThhmmss, the ISO 8601 format popular outside the US)


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