Print current date and time in Unix shell script

To store current date and time to a variable, enter:
now=$(date)
OR
now=`date`

Print Current Date in Unix

To print this date either use the printf or echo statement:
echo "$now"
echo "Current date: $now"
OR use the printf command:
printf "%s\n" "$now"
OR
printf "Current date and time in Linux %s\n" "$now"

Getting the current date and time in Linux shell script

You can format and display date using the following syntax:

date +'FORMAT'
 
### mm/dd/yyyy ###
date +'%m/%d/%Y'
 
## Time in 12 hr format ###
date +'%r'
 
## backup dir format ##
backup_dir=$(date +'%m/%d/%Y')
echo "Backup dir for today: /nas04/backups/${backup_dir}"

A list of date command format codes

Sample shell script to display the current date and time

#!/bin/bash
now="$(date)"
printf "Current date and time %s\n" "$now"
 
now="$(date +'%d/%m/%Y')"
printf "Current date in dd/mm/yyyy format %s\n" "$now"
 
echo "Starting backup at $now, please wait..."
# command to backup scripts goes here
# ...

Conclusion

For more info see date command man page by typing the following date command or GNU/date help page here:
man date