timestamp

Creates a nice ISO-8601 timestamp for usage in filenames, this is a built in format in some implementations of date.

Installation

Put the script somewhere in you path, i.e. in $HOME/bin (only you) or /usr/local/bin (everyone)

sudo cp timestamp /usr/local/bin

Usage

Add timestamp to a filename on a backup

cp file.ext /mnt/backup/file.$(timestamp).ext

Create a note with the current timestamp

vi meeting-notes-$(timestamp).txt

Just show the current timestamp

timestamp

Only use the day

Sometimes you only want the day and not the full timestamp, for those cases I've added the day option which can also be invoked with -d like below

$ timestamp day
2017-11-07
$ echo notes-$(timestamp -d).txt
notes-2017-11-07.txt