Commands by MichaelRose (0)

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convert from hexidecimal or octal to decimal
Bash can accept '0x' and '0' notation for hexidecimal and octal numbers, so you just have to output the values.

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"

Install pip with Proxy
Installs pip packages defining a proxy

Send a local file via email
if "mail -a" fail, try "mutt -a" or "nail -a"

Create multiple subfolders in one command.
Instead of typing separate commands to create various subfolders, we can create multiple subfolders by listing them between brackets and separated by commas.

Check if your desired password is already available in haveibeenpwnd database. This command uses the API provided by HIBP

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

resize all images in a folder

list block devices
Shows all block devices in a tree with descruptions of what they are.

Replace duplicate files by hardlinks


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