Commands tagged batch rename (8)

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Nice info browser
pinfo package provide a nice info alternative based on ncurses.

Get a qrcode for a given string

Upgrade all perl modules via CPAN

How to get an absolute value
Whenever we are only interested in difference between two numbers and not the positive/negative values we can use this in script.

download newest adminer and rename to it's version accordingly
If the version already downloaded. it will not download again

Show what PID is listening on port 80 on Linux

Write comments to your history.
A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

doing some floating point math

Find brute force attempts on SSHd
Searches the /var/log/secure log file for Failed and/or invalid user log in attempts.

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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