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docs: omnibus cleanup

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Includes harmonizing the display of options and arguments, standardising
terminology, using the envvar directive more broadly, adding help options to all
commands that support them, simplifying some language, and tidying up multiple
formatting issues.

string documentation is not changed.
This commit is contained in:
David Adam
2022-03-12 00:18:41 +08:00
parent e23e52a8e9
commit 3a23fdf359
66 changed files with 278 additions and 143 deletions
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9
doc_src/cmds/ulimit.rst
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@@ -69,13 +69,16 @@ The following additional options are also understood by ``ulimit``:
**-a** or **--all**
Prints all current limits.
**-h** or **--help**
Displays help about using this command.
The ``fish`` implementation of ``ulimit`` should behave identically to the implementation in bash, except for these differences:
- Fish ``ulimit`` supports GNU-style long options for all switches
- Fish ``ulimit`` supports GNU-style long options for all switches.
- Fish ``ulimit`` does not support the ``-p`` option for getting the pipe size. The bash implementation consists of a compile-time check that empirically guesses this number by writing to a pipe and waiting for SIGPIPE. Fish does not do this because it this method of determining pipe size is unreliable. Depending on bash version, there may also be further additional limits to set in bash that do not exist in fish.
- Fish ``ulimit`` does not support the **-p** option for getting the pipe size. The bash implementation consists of a compile-time check that empirically guesses this number by writing to a pipe and waiting for SIGPIPE. Fish does not do this because it this method of determining pipe size is unreliable. Depending on bash version, there may also be further additional limits to set in bash that do not exist in fish.
- Fish ``ulimit`` does not support getting or setting multiple limits in one command, except reporting all values using the ``-a`` switch
- Fish ``ulimit`` does not support getting or setting multiple limits in one command, except reporting all values using the **-a** switch.
Example