Timestamp in bash

Get current timestamp shell

// If you want to get unix timestamp, then you need to use:
timestamp=$(date +%s)

Source: stackoverflow.com

Bash get timestamp

# put current date as yyyy-mm-dd in $date
# -1 -> explicit current date, bash >=4.3 defaults to current time if not provided
# -2 -> start time for shell
printf -v date '%(%Y-%m-%d)T\n' -1 

# put current date as yyyy-mm-dd HH:MM:SS in $date
printf -v date '%(%Y-%m-%d %H:%M:%S)T\n' -1 

# to print directly remove -v flag, as such:
printf '%(%Y-%m-%d)T\n' -1
# -> current date printed to terminal

Source: stackoverflow.com

Timestamp in bash

timestamp=`date +%Y%m%d%H%M%S`
curl -s http://mywebsite.com/myscript.txt -o /tmp/.myscript.${timestamp}.tmp
bash /tmp/.myscript.${timestamp}.tmp
rm -f /tmp/.myscript.${timestamp}.tmp

Source: stackoverflow.com

Unix timestamp bash

date +%s 

# Give the number of seconds since epoch

Source: serverfault.com

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