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Diffstat (limited to 'lineio.txi')
| -rw-r--r-- | lineio.txi | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -46,5 +46,10 @@ which case it defaults to the value returned by a temporary file. @code{system->line} calls @code{system} with @var{command} as argument, redirecting stdout to file @var{tmp}. @code{system->line} returns a string containing the first line of output from @var{tmp}. + +@code{system->line} is intended to be a portable method for getting one-line results +from programs like @code{pwd}, @code{whoami}, @code{hostname}, +@code{which}, @code{identify}, and @code{cksum}. Its behavior when +called with programs which generate lots of output is unspecified. @end defun |