Commands using sort (800)

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Re-emerge all ebuilds with missing files (Gentoo Linux)

Print Memory Utilization Percentage For a specific process and it's children
Change the name of the process and what is echoed to suit your needs. The brackets around the h in the grep statement cause grep to skip over "grep httpd", it is the equivalent of grep -v grep although more elegant.

String to binary
Cool but useless.

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"

check open ports without netstat or lsof

Quick command line math
expr will give you a quick way to do basic math from the CLI. Make sure you escape things like * and leave a space between operators and digits.

Rename files in batch

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"

list files recursively by size

Show the PATH, one directory per line
This is useful for examining the path.


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