I'm trying to put together a generic script that will check the existence of several key directories for various users on different servers. Additionally, I want to leverage each user's $HOME variable.
For eg, let's say this were true:
- on server 1: jdoe's home is /home/jdoe
- on server 2: jdoe's home is /opt/jdoe2
- server 3 hasn't been built yet; we won't know where they build his $HOME until the server is built.
- on server 4: mysql's home is /opt/home/mysql
This is what I have for my important directories (ordered from most to least impt):
$ cat mylist.txt
$HOME/most_impt_dir1
$HOME/most_impt_dir2
$HOME/most_impt_dir3
$HOME/misc
$HOME/junk
…I want to find the most impt dir owned by this user.
Here's what I'm trying:
for i in `cat mylist.txt`
do
if [[ -O $i ]] && [[ -d $i ]]; then
echo "found it: $i"
break
else
echo "$i is not it."
fi
done
The above code does not work for anything in my list because it is literally checking for dirs beginning with $HOME
. How do I get my code to use the value of the user's $HOME
variable?
Best Answer
With
envsubst
- replacing yourfor/cat
loop with awhile/read
loop for the reasons discussed here:See also