help a beginner, expect script, command not found

Shell Programming and Scripting
1

hi,
i have a problem with my expect script, here is MyScript:

#!/usr/bin/expect
set pass [lindex $argv 0]
set c [lindex $argv 1]
set command [string map {"_" " "} $c]
spawn sudo $command
expect "assword"
send "$pass\r"
expect eof

My problem is that when i execute MyScript with the command :

"./MyScript mypassword apt-get_install_git"

i get following error:

"spawn sudo apt-get install git
[sudo] password for gongotar: 
sudo: apt-get install git: command not found"

can anyone help me with that?!

2

how about `apt-get_install_git`?
try only this

apt-get install

or

apt-get install packagename
3

when i try

apt-get install packagename

it works,even if i alter my script as following and run it with the command

./MyScript mypassword

it works correctly:

#!/usr/bin/expect 
set pass [lindex $argv 0] 
spawn sudo apt-get install git 
expect "assword" 
send "$pass\r" 
expect eof

but what i want is an script that get my command (for example: apt-get install git) and execute it as root, i dont know how to do this.

4

Can you paste your script? Also, do you really need an expect. I mean we can configure sudoers to work without password.

--ahamed

5

i've already inserted my script in my first post in this thread, but here is my script again:

#!/usr/bin/expect 
set pass [lindex $argv 0] 
set c [lindex $argv 1] 
set command [string map {"_" " "} $c] 
spawn sudo $command 
expect "assword" 
send "$pass\r" 
expect eof

and yes,i need an script, because im using this script in my java code, and i can not execute commands as root in there without scripts, i need to execute commands such as "route add ... " or "route del ..." , and these commands need to be executed as root.

6

Firstly use clear password is very unscure!.you may must use just commands in shell without expect.or you can use sudo with NOPASSWD.
Even so i try to simple expect examples for your goal.

!! with clear passwd

#!/usr/bin/expect
set pass [lindex $argv 0]
eval spawn sudo -k [lrange $argv 1 end]
expect "assword"
send "$pass\r"
expect eof

./MyScript mypassword mycommands..

with passwd file (passwd file permission must only readable from owner!)

#!/usr/bin/expect
set filer [open "/home/xxx/.xfile" r]
set x [read $filer]
eval spawn sudo -k [lrange $argv 0 end]
expect "assword"
send "$x\r"
expect eof

./MyScript mycommands..

regards
ygemici

1 Like
7

that solved my problem, i used the one with the passwd file, and i have no problem, thanks