Commands by debyatman (1)

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Get a docker container's run command line
A good way to build a new container when you don't remember how you did it the first time

Calculate days on which Friday the 13th occurs (inspired from the work of the user justsomeguy)
Friday is the 5th day of the week, monday is the 1st. Output may be affected by locale.

List known debian vulnerabilities on your system -- many of which may not yet be patched.
You can search for CVEs at https://security-tracker.debian.org/tracker/ or use --report to get full links. This can be added to cron, but unless you're going to do manual patches, you'd just be torturing yourself.

Install pip with Proxy
Installs pip packages defining a proxy

Fast tape rewind
Traditionally we rewind a tape using this syntaxis: $ mt -f /dev/rmt/0cbn rewind Redirecting the dispositive to nothing as shown above is faster. Less typing is always better.

List the Sizes of Folders and Directories
I wanted an easy way to list out the sizes of directories and all of the contents of those directories recursively.

List the biggest accessible files/dirs in current directory, sorted

Remove blank lines from a file using grep and save output to new file

check open ports (both ipv4 and ipv6)
Check open TCP and UDP ports

Stripping ^M at end of each line for files
just deletes to rogue CR from dos files, and tr is always available.

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