Re: Expect timeout problem. I needs help.
- From: "zelzel.zsu@xxxxxxxxx" <zelzel.zsu@xxxxxxxxx>
- Date: 30 Nov 2005 00:34:42 -0800
I use autoexpect to generate a script file.
And again, I meet the problem.
Sometimes the script runs as expected, sometimes it timeout.
#!/usr/local/bin/expect -f
#
# This Expect script was generated by autoexpect on Tue Nov 29 15:33:42
2005
# Expect and autoexpect were both written by Don Libes, NIST.
#
# Note that autoexpect does not guarantee a working script. It
# necessarily has to guess about certain things. Two reasons a script
# might fail are:
#
# 1) timing - A surprising number of programs (rn, ksh, zsh, telnet,
# etc.) and devices discard or ignore keystrokes that arrive "too
# quickly" after prompts. If you find your new script hanging up at
# one spot, try adding a short sleep just before the previous send.
# Setting "force_conservative" to 1 (see below) makes Expect do this
# automatically - pausing briefly before sending each character. This
# pacifies every program I know of. The -c flag makes the script do
# this in the first place. The -C flag allows you to define a
# character to toggle this mode off and on.
set force_conservative 0 ;# set to 1 to force conservative mode even
if
;# script wasn't run conservatively originally
if {$force_conservative} {
set send_slow {1 .1}
proc send {ignore arg} {
sleep .1
exp_send -s -- $arg
}
}
#
# 2) differing output - Some programs produce different output each
time
# they run. The "date" command is an obvious example. Another is
# ftp, if it produces throughput statistics at the end of a file
# transfer. If this causes a problem, delete these patterns or replace
# them with wildcards. An alternative is to use the -p flag (for
# "prompt") which makes Expect only look for the last line of output
# (i.e., the prompt). The -P flag allows you to define a character to
# toggle this mode off and on.
#
# Read the man page for more info.
#
# -Don
set timeout -1
spawn $env(SHELL)
match_max 100000
expect -exact "\]0;brian@localhost:~\[brian@brian brian\]\$"
send -- "su\r"
expect -exact "su\r
Password: "
send -- "sec1123\r"
expect -exact "\r
\]0;brian@localhost:/home/brian\[root@brian brian\]\$"
send -- "whoami\r"
expect -exact "whoami\r
root\r
\]0;brian@localhost:/home/brian\[root@brian brian\]\$"
send -- "exit\r"
expect -exact "exit\r
exit\r
\]0;brian@localhost:~\[brian@brian brian\]\$"
send -- "exit\r"
expect eof
.
- Follow-Ups:
- Re: Expect timeout problem. I needs help.
- From: Uwe Klein
- Re: Expect timeout problem. I needs help.
- References:
- Expect timeout problem. I needs help.
- From: zelzel . zsu
- Re: Expect timeout problem. I needs help.
- From: Uwe Klein
- Re: Expect timeout problem. I needs help.
- From: zelzel.zsu@xxxxxxxxx
- Re: Expect timeout problem. I needs help.
- From: Uwe Klein
- Expect timeout problem. I needs help.
- Prev by Date: Re: Little doubts with Snit
- Next by Date: Re: Expect timeout problem. I needs help.
- Previous by thread: Re: Expect timeout problem. I needs help.
- Next by thread: Re: Expect timeout problem. I needs help.
- Index(es):
Relevant Pages
|
