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Add ISO8601 date command.

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Joshua Levy 2018-03-05 11:53:25 -08:00 committed by GitHub
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@ -285,7 +285,7 @@ mkdir empty && rsync -r --delete empty/ some-dir && rmdir some-dir
- To split files into pieces, see `split` (to split by size) and `csplit` (to split by a pattern).
- To manipulate date and time expressions, use `dateadd`, `datediff`, `strptime` etc. from [`dateutils`](http://www.fresse.org/dateutils/).
- Date and time: To get the current date and time in the helpful [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format, use `date -u +"%Y-%m-%dT%H:%M:%SZ"` (other options [are](https://stackoverflow.com/questions/7216358/date-command-on-os-x-doesnt-have-iso-8601-i-option) [problematic](https://unix.stackexchange.com/questions/164826/date-command-iso-8601-option)). To manipulate date and time expressions, use `dateadd`, `datediff`, `strptime` etc. from [`dateutils`](http://www.fresse.org/dateutils/).
- Use `zless`, `zmore`, `zcat`, and `zgrep` to operate on compressed files.