Convert time stored in a variable as +%Y%m%d%H%M%S to second since epoch

Asked Mar 07 '18 at 13:13

Active Mar 07 '18 at 16:02

Viewed 518 times

There is a variable var_date which stores time in format +%Y%m%d%H%M%S, my requirement is to convert this into second since epoch. One way to achieve this is to use date command with -d option like

date -d "$var_date" %s

but this does not work as -d option expect content of var_date to be in format %Y-%m-%d %H:%M:%S and not %Y%m%d%H%M%S. Is there any option using which i can convert time stored as %Y%m%d%H%M%S into second since epoch?

edited Mar 07 '18 at 16:02

gal242

asked Mar 07 '18 at 13:13

Manish Sharan Singh

@tripleee This is not the same question. Problem here is input format is different +%Y%m%d%H%M%S which does not work with "-d" option in date command. – Manish Sharan Singh Mar 07 '18 at 13:26
There are three duplicates which between them I believe cover every possible interpretation of your question. The first one does handle exactly what you seem to be describing. – tripleee Mar 07 '18 at 13:28
See https://unix.stackexchange.com/questions/56824/how-do-you-specify-a-format-for-the-input-to-date – Micha Wiedenmann Mar 07 '18 at 13:31
@tripleee Ya, first link matches. Thanks. – Manish Sharan Singh Mar 07 '18 at 13:35

Convert time stored in a variable as +%Y%m%d%H%M%S to second since epoch

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