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-   Development (https://talk.maemo.org/forumdisplay.php?f=13)
-   -   [Linux bash] Why is this not working? (https://talk.maemo.org/showthread.php?t=47136)

eitama 2010-03-11 16:23
[Linux bash] Why is this not working?
 
I've been at this for 3 hours now.
It's not wrorking.

Code:
#!/bin/sh

#my=`/sbin/ifconfig usb0`
my="abcd"

if [ $my == "*bc*" ]
then
        echo "Ok"
else
        echo "Not ok"
fi
This prints "Not ok" when i would expect it to print Ok.

I ran this on my phone using putty.

On the other hand :

this works :

Code:
#!/bin/sh

#my=`/sbin/ifconfig usb0`
my="abcd"

if [ $my == "abcd" ]
then
        echo "Ok"
else
        echo "Not ok"
fi
Please help :confused:

gobuki 2010-03-11 16:31
Re: [Linux bash] Why is this not working?
 
I didn't know that * is working like that with strings. Is it? It's expanded to filesystem objects names in bash.

If you are sure this should work. How about using #!/bin/bash? :-)

eitama 2010-03-11 16:41
Re: [Linux bash] Why is this not working?
 
As far as I know, glob works with == yes,

But, there is no bash on the N900, busybox....

fatalsaint 2010-03-11 16:41
Re: [Linux bash] Why is this not working?
 
Code:
#!/bin/sh

#my=`/sbin/ifconfig usb0`
my="abcd"

if [ "$my" == *bc* ]
then
        echo "Ok"
else
        echo "Not ok"
fi
Maybe?

eitama 2010-03-11 16:45
Re: [Linux bash] Why is this not working?
 
Quote:
Originally Posted by fatalsaint (Post 563982)
Code:
#!/bin/sh

#my=`/sbin/ifconfig usb0`
my="abcd"

if [ "$my" == *bc* ]
then
        echo "Ok"
else
        echo "Not ok"
fi
Maybe?
Doesn't matter, still won't work.
The thing that is not working is the * (asterisks).

What I am ultimately trying to do is check if usb0 is RUNNING.

JosefA 2010-03-11 16:46
Re: [Linux bash] Why is this not working?
 
PHP Code:
#!/bin/bash

my="abcd"

if [[ $my = *bc* ]]
then
        echo "Ok"
else
        echo "Not ok"
fi 

eitama 2010-03-11 16:48
Re: [Linux bash] Why is this not working?
 
Quote:
Originally Posted by JosefA (Post 563993)
PHP Code:
#!/bin/bash

my="abcd"

if [[ $my = *bc* ]]
then
        echo "Ok"
else
        echo "Not ok"
fi 
I don't have BASH on my N900.

kopele 2010-03-11 16:48
Re: [Linux bash] Why is this not working?
 
Comparing strings like this is a form of regex which requires you use double square brackets around it: if [[ ]]

JosefA 2010-03-11 16:51
Re: [Linux bash] Why is this not working?
 
The point is, look at the difference between that and your code. The point isn't "do you have bash on your N900". I don't either.

fatalsaint 2010-03-11 16:53
Re: [Linux bash] Why is this not working?
 
Oops.. I forgot the double brackets.

I knew the lack of quotes on the *bc* though... ;)


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