| 1 | Usage: help TOPIC? |
| 2 | |
| 3 | Examples: |
| 4 | |
| 5 | help # this help |
| 6 | help echo # help on the 'echo' builtin |
| 7 | help command-sub # help on command sub $(date) |
| 8 | |
| 9 | help oils-usage # identical to oils-for-unix --help |
| 10 | help osh-usage # osh --help |
| 11 | help ysh-usage # ysh --help |