[solved] Help with simple bash script

Dethredic · 2011-08-21 17:49:59

#!/bin/bash
current_state=cat /home/phil/.screen_state

if ["$current_state" = "laptop"];
then
        disper -S
        echo TV > .screen_state
else
        disper -s
        echo laptop > .screen_state
fi

[phil@pwned ~]$ ./screenswitch.sh
./screenswitch.sh: line 3: /home/phil/.screen_state: Permission denied
./screenswitch.sh: line 5: [: missing `]'
[phil@pwned ~]$ cat /home/phil/.screen_state
laptop
[phil@pwned ~]$

I'm not sure why I'm getting the permission denied, and also I can't see whats wrong with line 5.

Last edited by Dethredic (2011-08-21 19:46:57)

karol · 2011-08-21 17:53:18

IIRC you need spaces

if [ "foo" = "foo" ]; then

between '[' and another character.

Edit: Got it.

current_state=cat /home/phil/.screen_state

This is plain wrong. I get 'Permission denied' too.
Try

current_state=$(cat /home/phil/.screen_state)

Last edited by karol (2011-08-21 17:59:16)

Dethredic · 2011-08-21 19:40:35

Thanks a lot, worked great.

karol · 2011-08-21 19:45:04

Please remember to mark as solved :-)

Arch Linux

#1 2011-08-21 17:49:59

[solved] Help with simple bash script

#2 2011-08-21 17:53:18

Re: [solved] Help with simple bash script

#3 2011-08-21 19:40:35

Re: [solved] Help with simple bash script

#4 2011-08-21 19:45:04

Re: [solved] Help with simple bash script

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