Commands using grep (1,935)

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find out which directories in /home have the most files currently open

List all files opened by a particular command
List all file opened by a particular command based on it's command name.

Enter parameter if empty (script becomes interactive when parameters are missing)
Can be used for command line parameters too. If you have a more complicated way of entering values (validation, GUI, ...), then write a function i.e. EnterValue() that echoes the value and then you can write: $ param=${param:-$(EnterValue)}

print the name of each package APT knows [matching a prefix]
In this case, linux- is the prefix; simply running $apt-cache pkgnames would list every package APT knows about. The default APT config assumes -g, --generate; to use the cache as/is, you could similarly run: $apt-cache --no-generate pkgnames [prefix] Adding --all-names, like so: $apt-cache --no-generate --all-names pkgnames [prefix] would print all the packages APT knows about, using the cache as/is, including virtual packages and missing dependencies. This command was shamelessly stolen from the apt-cache(8) man-page.

Find the package that installed a command

Adding leading zeros to a filename (1.jpg -> 001.jpg)
From: http://grml.org/zsh/zsh-lovers.html

Create a bunch of dummy text files
Avoiding a for loop brought this time down to less than 3 seconds on my old machine. And just to be clear, 33554432 = 8192 * 4086.

Advanced python tracing
Trace python statement execution and syscalls invoked during that simultaneously

Jump to line X in file in Nano.
Starts the cursor on line X of file foo. Useful for longer files in which it takes a long time to scroll. If X is greater than the number of lines in file foo, it will go to the last existing line.

Open browser from terminal to create PR after pushing something in Git in MAC


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