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Sort installed rpms in alphabetic order with their size.

Detect illegal access to kernel space, potentially useful for Meltdown detection
Based on capsule8 agent examples, not rigorously tested

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"

Symlink all files from a base directory to a target directory
Simple and easy to remember, if it already exists then it just ignores it.

Recursive grep of all c++ source under the current directory

multiline data block parse and CSV data extraction with perl
extract data in multiline blocks of data with perl pattern matching loop

Set laptop display brightness
Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

Sort files in folders alphabetically
Creates one letter folders in the current directory and moves files with corresponding initial in the folder.

print lib path of perl

Rename files in batch


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