How to find matching keywords in path (backward)

[gsgb1]

I want to move files from my source directory to target directory, and want to make sure that user is moving from designated directory, like from /dev/prj1 of source to /dev/prj1 of target.
How can I get last 2 directories /dev/prj1, considering directory path length may change. I want to start from back and grab last two. I want then to match last two dir pattern with target and if matching, then copy otherwise fail. Here is more info

I have source directory path as
src_path=/corp/thost/usr/deploy/dev/prj1
and my target path is as follows
tgt_path=/corp/thost/proj/prod/dev/prj1

And last two directories /dev/prj1 are changing for departments, and

 

[mikevh]

Don't know how you're getting src_path and tgt_path, but once you've got them, split the 2 paths to arrays and compare the last 2 elements of the arrays.

BEGIN {
    OLD_FS = FS
    FS="/"
    srcn = split(src_path, s)
    tgtn = split(tgt_path, t)
    if (!(s[srcn] == t[tgtn] && s[srcn - 1] == t[tgtn - 1])) {
        print "Error in source/target directories"
        exit(1)
    }
    FS = OLD_FS
}

 

[futurelet]

This script asks the user for the destination path and then makes sure that it meets your requirements.

[tt]
BEGIN{ src_path="/corp/thost/usr/deploy/dev/prj1"
printf "Destination? "
getline tgt_path
if ( end(tgt_path) != end(src_path) )
{ print "Destination must end with " end(src_path)
exit
}
com = "mv " src_path "/* " tgt_path "/"
system( com )
}
function end( s )
{ match( s, /\/[^\/]*\/[^\/]*$/ )
return substr( s, RSTART, RLENGTH )
}
[/tt]