Display current date and time without punctuation
Here you go:
date +%Y%m%d%H%M%S
As man date
says near the top, you can use the date
command like this:
date [OPTION]... [+FORMAT]
That is, you can give it a format parameter, starting with a +
. You can probably guess the meaning of the formatting symbols I used:
%Y
is for year%m
is for month%d
is for day- ... and so on
You can find this, and other formatting symbols in man date
.
If you're using Bash you could also use one of the following commands:
printf '%(%Y%m%d%H%M%S)T' # prints the current timeprintf '%(%Y%m%d%H%M%S)T' -1 # same as aboveprintf '%(%Y%m%d%H%M%S)T' -2 # prints the time the shell was invoked
You can use the Option -v varname
to store the result in $varname
instead of printing it to stdout:
printf -v varname '%(%Y%m%d%H%M%S)T'
While the date command will always be executed in a subshell (i.e. in a separate process) printf is a builtin command and will therefore be faster.