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Using ".." to change directories in a ksh script

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Top Forums Shell Programming and Scripting Using ".." to change directories in a ksh script
# 1  
Old 10-24-2012
Data Using ".." to change directories in a ksh script
I have an issue driving me bonkers. I have a ksh script that requires changing directories. If a argument "TEST" is passed in, this is a regression test execution of the script (as opposed to production execution). I have a directory entitled "TEST" that is located three directory locations ABOVE where the script resides.

If I determine my current path using pwd, I am able to retrieve the current directory. I then append the following path info to the value retrieve with pwd. For example:
mypath=`pwd`
echo "DBG - my path is: " $mypath

This displays /home/joec/dev/solution/tools/libsearch.

I then append the following to the $mypath variable:
rbase=$mypath/../../../lib/$test/profiles

Where $test is the value passed in on the command line.

The problem I am having is this. I perform a check to see if the argument being passed in exists as a directory. The if [[ -d $rbase ]]; then checks to see if the directory for the TEST directory $rbase exists. The problem I am encountering is that the script is not processing the ".." to move up the directory tree. As a result, even though the path for $rbase exists, the ksh script is returning the value that it doesnt and thus exits the script incorrectly.

Is there something that I am (subtly) missing?

Smilie
# 2  
Old 10-24-2012
since running on current working directory try:
Code:
rbase=../../../lib/$test/profiles

or try setting:
Code:
rbase=${PWD%/*/*/*}/lib/$test/profiles

# 3  
Old 10-24-2012
No dice...
The first method you suggested I already tried (that was attempt #1). The 2nd method you suggested resorted in the same error message.

I normally dont think I am stupid, but this issue is causing me to rethink that premise. Smilie
# 4  
Old 10-24-2012
Have you checked if it's is a permission problem for cd, maybe? The -d test could pass but cd will fail.
# 5  
Old 10-24-2012
Not a permissions issue
I own the directory(s) in question and they are all using 755 (rwxr-xr-x). It isnt even making it through the -d conditional. I can change directories to the test path, but the conditional is flailing and failing.
Last edited by joe cipale; 10-24-2012 at 03:26 PM.. Reason: to add further information
# 6  
Old 10-24-2012
Please post your entire script. We can't see enough to figure out what's going wrong here.
# 7  
Old 10-24-2012
code snippet
I can post a portion. It is basically proprietary corp code.

Code:
#------------------------------------------------------------------
# Parse the command-line args
#------------------------------------------------------------------

while getopts "s:g:v:q:" flag
    do
        case $flag in
        s) srp_path=$OPTARG
           print "base release        : " $test_path
           ;;
        g) grp_path=$OPTARG
           print "support release        : " $spt_path
           ;;
        v) vers=$OPTARG
           print "support version        : " $vers
           ;;
        q) prd_path=$OPTARG
           print "product path       : " $prd_path
           ;;
: )          echo "$0: $OPTARG option missing argument..."
           exit 2
           ;;
        [?]) print >&2 "Usage: "$USAGE
           exit 1
           ;;

        esac
    done
shift $OPTIND-1

#------------------------------------------------------------------
# Check the correctness of the cmd-line values
#------------------------------------------------------------------

mypath=`pwd`
echo "DBG - my path is: " $mypath

#rbase=../../../lib/$test/profiles
#rbase=$mypath/../../../lib/$test/profiles
rbase=${PWD%/*/*/*}/lib/$test/profiles

# debug 
cd $rbase
rpath=`pwd` 
print "DBG - current path is: " $rpath

tbase=$tbase/$test
#rbase=$rbase/$test

print "DBG - Base path is: " $tbase
print "DBG - Regression path is: " $rbase

if [[ -d $tbase ]]; then
    # search paths
    test_path=$base/SOLUTION/$test/profiles
    print "DBG - path is: $test_path
elif [[ -d $rbase ]]; then
    # regression search paths
    #test_path=$rbase
    print "DBG - test path is: $rbase
else
print "The specified path does not exist..."
    exit 1
fi

The commented out bits of code are methods I have attempted and I would like to keep track of them for now.

Thanks folks.
Last edited by Corona688; 10-24-2012 at 04:17 PM..
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