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Diffstat (limited to 'doc/usage/cmdline.rst')
| -rw-r--r-- | doc/usage/cmdline.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/usage/cmdline.rst b/doc/usage/cmdline.rst index 58240c5279c..79b9baf7bfe 100644 --- a/doc/usage/cmdline.rst +++ b/doc/usage/cmdline.rst @@ -55,6 +55,12 @@ General rules command will cause "run" to terminate, i. e. the remaining variables are not executed. +#. The variable ``$?`` will be set as the return value of any command. The + possible values are 0 on success or 1 on any error e. g. invalid syntax or + failure of the command. Any exceptions to this are documented by the + specific command, e.g. the :doc:`for command <cmd/for>` sets ``$?`` based on + the last command run within the loop. + Representing numbers -------------------- |