extracting 24hr time from date(): grep or sed?

[shambolic]

hi, bit of a noob question here, but in the absence of any disk-level resilience, i'm trying to dump a database to file every hour. i want to rotate the files by extracting the 24 hour time from date() and embedding it in the file name.
i've tried the following to extract, but have a feeling i'm somewhat misguided here :

TIMESTAMP=$(date)  
sed $TIMESTAMP s'/^*\d\d:\d\d.*/g'

...grateful for any thoughts or suggestions.

[jozyba]

Couldn't you just use date's built-in formatting?

TIMESTAMP=$(date +"%R")

[shambolic]

...er, yep.
right under the proverbial.

thanks for the steer

[tobius74]

Newbie to this site. I'm curious what your final script was to parse date 24hrs?

thanks.

[oz]

Hello and welcome, tobius74!

This thread is well over 4 years old so I'm going to lock it but please feel free to start a fresh thread if you need any help with Linux.

Thanks!