Commands by dansimau (1)

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monitor memory usage

extracts 64 bytes of random digits from random lines out of /dev/random sent to stdio
Use this the next time you need to come up with a reasonably random bitstring, like for a WPA/WPA2 PSK or something. Takes a continuous stream of bytes coming from /dev/urandom, runs it through od(1), picking a random field ($0 and $1 excluded) from a random line and then prints it.

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Format date/time string for a different day
The "date' command has options to easily format the date, day, month, time, etc. But what if you want a relative date or time. Like, I wanted yesterday's date in a particular format. You may want the exact date of "2 months ago" or "-3 days" nicely formatted. For that, you can use this command. The --date option takes fuzzy parameters like the ones mentioned in the previous sentence.

See the 10 programs the most used

currently mounted filesystems in nice layout
Particularly useful if you're mounting different drives, using the following command will allow you to see all the filesystems currently mounted on your computer and their respective specs with the added benefit of nice formatting.

get all Amazon cloud (amazonws etc) ipv6 subnets

Show all available cows
There are lots of different cow options to use, this script will show them all

finding cr-lf files aka dos files with ^M characters
its useful to run dos2unix command later on them.

check open ports without netstat or lsof


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