diff options
Diffstat (limited to 'login-utils/su.1')
| -rw-r--r-- | login-utils/su.1 | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/login-utils/su.1 b/login-utils/su.1 index f2b8fac8a..c09cb1c13 100644 --- a/login-utils/su.1 +++ b/login-utils/su.1 @@ -115,6 +115,10 @@ security attacks against terminal file descriptors. The all session is also possible to move to background (e.g. "su --pty - username -c application &"). If the pseudo-terminal is enabled then su command works as a proxy between the sessions (copy stdin and stdout). +.sp +This feature is mostly designed for interactive sessions. If the standard input +is not a terminal, but for example pipe (e.g. echo "date" | su --pty) than ECHO +flag for the pseudo-terminal is disabled to avoid messy output. .TP .BR \-s , " \-\-shell" = \fIshell Run the specified \fIshell\fR instead of the default. The shell to run is |