[SOLVED] Checking if multiple directories exist

amario26 · 04-27-2011, 08:15 AM

Hi guys,

I'll get straight to the point.. I have one file called test.sh and in that file I have the below code. All this code is, is paths to three directories (as you can you can clearly see!).

Code:

#!/bin/bash
BACKUP="Documents /bin /sbin"

Now I have this other file which reads the directories (by using $BACKUP) and creates a tar file of everything in that folder. But what I am unsure of what to is create a bit of code that will simply look in test.sh, read all the directories and print a line saying either they all exist or some are missing. If possible it would be good to know which directories are missing too!

I have fiddled around with using -d but I can only get it to work for one directory or manually having to write out each directory.

Any ideas experts?

Many thanks in advance.. you all do a great job!

savona · 04-27-2011, 08:28 AM

Quote:

Originally Posted by amario26

Hi guys,

I'll get straight to the point.. I have one file called test.sh and in that file I have the below code. All this code is, is paths to three directories (as you can you can clearly see!).

Code:

#!/bin/bash
BACKUP="Documents /bin /sbin"

Now I have this other file which reads the directories (by using $BACKUP) and creates a tar file of everything in that folder. But what I am unsure of what to is create a bit of code that will simply look in test.sh, read all the directories and print a line saying either they all exist or some are missing. If possible it would be good to know which directories are missing too!

I have fiddled around with using -d but I can only get it to work for one directory or manually having to write out each directory.

Any ideas experts?

Many thanks in advance.. you all do a great job!

I am not much of a bash script writer (as you will probably see) but it seems to me you would want to split the $BACKUP variable and then check each directory.

Code:

#!/bin/bash
BACKUP="Documents /bin /sbin"

set -- $BACKUP

DIRS=$@

for i in "$@"
do
 if [ -d $i ]; then
        echo "Directory $i exists"
fi
done

amario26 · 04-27-2011, 08:34 AM

Thank you so much! That is awesome! It prints out whether the directory exists! one question though (sorry i'm a bit new to this) but do you know how to change this a little so that it will tell me that a directory "doesnt exist"?

Many thanks

amario26 · 04-27-2011, 08:35 AM

Actually dont worry.. it was just a simple else function.. i.e.:

Code:

else
 echo "Directory $i doesnt exist"

savona · 04-27-2011, 09:12 AM

Quote:

Originally Posted by amario26

Actually dont worry.. it was just a simple else function.. i.e.:

Code:

else
 echo "Directory $i doesnt exist"

You got it!