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List packages manually installed with process currently running
Sometimes we install programs, we forget about them, and they stay there wasting RAM. This one-liner try to find them.

View facebook friend list [hidden or not hidden]
There's no need to be logged in facebook. I could do more JSON filtering but you get the idea... Replace u=4 (Mark Zuckerberg, Facebook creator) with desired uid. Hidden or not hidden... Scary, don't you?

Get AWS temporary credentials ready to export based on a MFA virtual appliance
You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

Find the package a command belongs to on debian-based distros

Check SSL expiry from commandline

find with high precission (nanoseconds 1/1,000,000,000s) the last changed file.
this is good for variables if you have many script created files and if you want to know which one is the last created/changed one..

mysql bin log events per minute
shows number of mysql bin log events (which are mysql server events) per minute, useful to check stress times postmortem

Get size of terminal
See the cols and lines and make sure the console it correctly configured for the screen size.

Sum columns from CSV column $COL
More of the same but with more elaborate perl-fu :-)

grep for minus (-) sign
Use flag "--" to stop switch parsing


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