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| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2021-01-20 12:14:01 +0100 |
|---|---|---|
| committer | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2021-01-25 01:15:33 +0100 |
| commit | 627b57bde05063b2f512d8e3ec6f8060aea25b91 (patch) | |
| tree | d013d7c59a272aa7281ae1a4ddba512cac13f4b0 /doc | |
| parent | 9c6d050966be910586aba358a8c63364afe37e03 (diff) | |
| download | u-boot-627b57bde05063b2f512d8e3ec6f8060aea25b91.tar.gz u-boot-627b57bde05063b2f512d8e3ec6f8060aea25b91.tar.xz u-boot-627b57bde05063b2f512d8e3ec6f8060aea25b91.zip | |
doc: describe exit command
Man-page for exit shell command.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/usage/exit.rst | 40 | ||||
| -rw-r--r-- | doc/usage/index.rst | 1 |
2 files changed, 41 insertions, 0 deletions
diff --git a/doc/usage/exit.rst b/doc/usage/exit.rst new file mode 100644 index 0000000000..769223c477 --- /dev/null +++ b/doc/usage/exit.rst @@ -0,0 +1,40 @@ +exit command +============ + +Synopsis +-------- + +:: + + exit + +Description +----------- + +The exit command terminates a script started via the run or source command. +If scripts are nested, only the innermost script is left. + +:: + + => setenv inner 'echo entry inner; exit; echo inner done' + => setenv outer 'echo entry outer; run inner; echo outer done' + => run outer + entry outer + entry inner + outer done + => + +When executed outside a script a warning is written. Following commands are not +executed. + +:: + + => echo first; exit; echo last + first + exit not allowed from main input shell. + => + +Return value +------------ + +$? is always set to 0 (true). diff --git a/doc/usage/index.rst b/doc/usage/index.rst index eedcdb110b..b8f216b713 100644 --- a/doc/usage/index.rst +++ b/doc/usage/index.rst @@ -17,6 +17,7 @@ Shell commands bootefi bootmenu button + exit mbr pstore sbi |