Commands by unixmonkey24450 (0)

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How to remove an ISO image from media database

Create a large test file (taking no space).

Remove all files previously extracted from a tar(.gz) file.

Rename all files in lower case
rename is a really powerfull to, as its name suggests, rename files

Get just the IP for a hostname

Open (in vim) all modified files in a git repository
The option --porcelain makes the output of git easier to parse. This one-liner may not work if there is a space in the modified file name.

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"

Generate a 18 character password, print the password and sha512 salted hash
Generate a 18 character password from character set a-zA-Z0-9 from /dev/urandom, pipe the output to Python which prints the password on standard out and in crypt sha512 form.

Batch rename extension of all files in a folder, in the example from .txt to .md
Same thing using bash built-in features instead of a sub-shell.

Eliminate dead symlinks interactively in /usr/ recursevely
Its not mine... I get from textlive migration in gentoo : http://www.gentoo.org/proj/en/tex/texlive-migration-guide.xml


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