$EPOCHSECONDS  –  Number of Seconds since Unix Epoch

$EPOCHSECONDS contains the number of seconds since the Unix Epoch.

The Unix Epoch starts at 1970-01-01 00:00:00 +0000 (UTC).

Links

• Bash manual
• Epoc definition of POSIX
• Notes on Epoch in “man 2 time”
• Wikipedia on Unix Time

Examples

Print number of seconds since UNIX Epoch

1 2	LC_ALL=en_US echo $EPOCHSECONDS