waitfor.1

来自「通讯程序源码」· 1 代码 · 共 45 行

.TH waitfor L
.SH NAME
waitfor \- wait for a string to appear on the stdin
.SH SYNOPSIS
.B waitfor
[
.B \-n
]
.B string
.SH DESCRIPTION
.I Waitfor
reads the standard input and returns a 0 if the string argument is
found, returns a 1 if the strings did not appear within the allotted
time, or returns a \-1 on error.  If the string is found,
.I waitfor
returns immediately.
.PP
.I Waitfor
is designed to be used by
.I Pcomm
inside a shell script for automating keyboard input to log a user onto a
remote system.
.PP
The
.I \-n
option is used to specify the length of time in seconds to wait.  The
default is 10 seconds.
.SH EXAMPLE
.nf
.RS 5
# wait 5 seconds for the login prompt
waitfor \-5 login:
# test the exit code of the waitfor command
if [ $? \-eq 0 ]
then
.RS 5
# send my user ID
echo egray
.RE
fi
.RE
.fi
.SH "SEE ALSO"
pcomm(1), pcomm_cmd(1), matches(1), Pcomm Reference Manual