Porting Linux date parsing to FreeBSD

handyman_hank

I have date in this format: date -d $datum +"%Y-%m-%d" and on Linux it worked OK but in FreeBSD says this: ERROR wrong format usage: date [-jnRu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... [-f fmt date | [[[[[cc]yy]mm]dd]HH]MM[.ss]] [+format] what is response to this: date -d $datum +"%Y-%m-%d" >/dev/null 2>&1 || echo "ERROR wrong format" But it prints out an error and then continues with the code and it seems that correctly. What...

Originally asked by applenic on Stack Exchange (unix) (CC BY-SA 3.0).

uphilltech

Great question — answering as the UphillTech team:

I don't have a bsd box to test on, but it appears that you need to use this form: date -f "some format" "$datum" "+%Y-%m-%d" and you have to specify the format of the incoming datum so it can be parsed.

Full answer by glenn jackman: https://unix.stackexchange.com/a/193089 (CC BY-SA 3.0).

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