fish-shell/doc_src/or.txt

\section or or - conditionally execute a command

\subsection or-synopsis Synopsis
\fish{synopsis}
COMMAND1; or COMMAND2
\endfish

\subsection or-description Description

`or` is used to execute a command if the current exit status (as set by the previous command) is not 0.

`or` statements may be used as part of the condition in an <a href="#if">`and`</a> or <a href="#while">`while`</a> block. See the documentation
for <a href="#if">`if`</a> and <a href="#while">`while`</a> for examples.

`or` does not change the current exit status itself, but the command it runs most likely will. The exit status of the last foreground command to exit can always be accessed using the <a href="index.html#variables-status">$status</a> variable.

\subsection or-example Example

The following code runs the `make` command to build a program. If the build succeeds, the program is installed. If either step fails, `make clean` is run, which removes the files created by the build process.

\fish
make; and make install; or make clean
\endfish
Fix casing and other minor issues in documentation darcs-hash:20061031152316-ac50b-e68db9853d6e9461a0c054f1ea290704ccfc0a31.gz 2006-10-31 23:23:16 +08:00			`\section or or - conditionally execute a command`
Add subdirectories darcs-hash:20050920133155-ac50b-9a14c6c664dd03afbe8e15e7c7998fcfb5c3c750.gz 2005-09-20 21:31:55 +08:00
			`\subsection or-synopsis Synopsis`
Simplify styling 2014-08-01 20:25:41 +08:00			`\fish{synopsis}`
Documentation update Rework for Doxygen >1.8. Moved large parts of the documentation to a simplified format, making use of Markdown enhancements and fixing bad long options. 2014-08-01 10:37:32 +08:00			`COMMAND1; or COMMAND2`
			`\endfish`
Add subdirectories darcs-hash:20050920133155-ac50b-9a14c6c664dd03afbe8e15e7c7998fcfb5c3c750.gz 2005-09-20 21:31:55 +08:00
			`\subsection or-description Description`

Update docs to reflect new if/while condtion chaining Documents new behavior in #1428 2016-05-20 04:00:40 +08:00			`or` is used to execute a command if the current exit status (as set by the previous command) is not 0.
Add subdirectories darcs-hash:20050920133155-ac50b-9a14c6c664dd03afbe8e15e7c7998fcfb5c3c750.gz 2005-09-20 21:31:55 +08:00
Update docs to reflect new if/while condtion chaining Documents new behavior in #1428 2016-05-20 04:00:40 +08:00			`or` statements may be used as part of the condition in an <a href="#if">`and`</a> or <a href="#while">`while`</a> block. See the documentation
			for <a href="#if">`if`</a> and <a href="#while">`while`</a> for examples.
Make line length, wrapping and spacing consistent 2014-08-19 20:41:23 +08:00
Clarify docs on $status with and/or/begin/end See #4311. 2017-08-11 21:05:28 +08:00			`or` does not change the current exit status itself, but the command it runs most likely will. The exit status of the last foreground command to exit can always be accessed using the <a href="index.html#variables-status">$status</a> variable.
Updates to the documentation - add a few crossreferences, remove redundant listing of builtins and update the todo list darcs-hash:20061102134725-ac50b-802d5cf8754ff94c4cc9533b2ff16a759e9aa2c9.gz 2006-11-02 21:47:25 +08:00
Add subdirectories darcs-hash:20050920133155-ac50b-9a14c6c664dd03afbe8e15e7c7998fcfb5c3c750.gz 2005-09-20 21:31:55 +08:00			`\subsection or-example Example`

Make line length, wrapping and spacing consistent 2014-08-19 20:41:23 +08:00			The following code runs the `make` command to build a program. If the build succeeds, the program is installed. If either step fails, `make clean` is run, which removes the files created by the build process.
Many minor edits and clarifications to the documentation, including comments about the exit status of a few commands darcs-hash:20060603231517-ac50b-03d252516eef21d4dd3a2ba0f5bb68e82525213b.gz 2006-06-04 07:15:17 +08:00
Documentation update Rework for Doxygen >1.8. Moved large parts of the documentation to a simplified format, making use of Markdown enhancements and fixing bad long options. 2014-08-01 10:37:32 +08:00			`\fish`
Many minor edits and clarifications to the documentation, including comments about the exit status of a few commands darcs-hash:20060603231517-ac50b-03d252516eef21d4dd3a2ba0f5bb68e82525213b.gz 2006-06-04 07:15:17 +08:00			`make; and make install; or make clean`
Documentation update Rework for Doxygen >1.8. Moved large parts of the documentation to a simplified format, making use of Markdown enhancements and fixing bad long options. 2014-08-01 10:37:32 +08:00			`\endfish`