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@johnmurch
Created August 10, 2016 13:43
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Timestamp output options
#! /bin/bash
# An overly obvious reference for most commonly requested bash timestamps
# Now all you Mac fags can stop pestering me.
cat << EOD
Format/result | Command | Output
------------------------------+----------------------------+------------------------------
YY-MM-DD_hh:mm:ss | date +%F_%T | $(date +%F_%T)
YYMMDD_hhmmss | date +%Y%m%d_%H%M%S | $(date +%Y%m%d_%H%M%S)
YYMMDD_hhmmss (UTC version) | date --utc +%Y%m%d_%H%M%SZ | $(date --utc +%Y%m%d_%H%M%SZ)
YYMMDD_hhmmss (with local TZ) | date +%Y%m%d_%H%M%S%Z | $(date +%Y%m%d_%H%M%S%Z)
YYMMSShhmmss | date +%Y%m%d%H%M%S | $(date +%Y%m%d%H%M%S)
YYMMSShhmmssnnnnnnnnn | date +%Y%m%d%H%M%S%N | $(date +%Y%m%d%H%M%S%N)
Seconds since UNIX epoch: | date +%s | $(date +%s)
Nanoseconds only: | date +%N | $(date +%N)
Nanoseconds since UNIX epoch: | date +%s%N | $(date +%s%N)
ISO8601 UTC timestamp | date --utc +%FT%TZ | $(date --utc +%FT%TZ)
ISO8601 Local TZ timestamp | date +%FT%T%Z | $(date +%FT%T%Z)
EOD
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