How to match string/dir in a path using bash scripting

I'm trying to create a Makefile that uses information from the path to create a relevant rpm name. Suppose I have two different possible paths:

PATH1 = /usr/local/home/jsmith/code/main
PATH2 = /usr/local/home/jsmith/code/dev/ver2

If "main" is detected in the path, I want to detect and append "main" to the rpm name. If "dev" is detected in the path, I want to detect and append "ver2" to the rpm name.

I'm new to shell scripting and really don't have a good idea on where to start. I could easily do this in something like python, but its for a Makefile so I need to do it in shell.

"main" in the path would be constant, but if "main" doesn't exist, the dev path name would need to be extrac开发者_如何学Cted. Here's a few mow examples:

/usr/local/home/jsmith/code/main /usr/local/home/jsmith/code/dev/ver_usa /usr/local/home/jsmith/code/dev/ver_mexico /usr/local/home/jsmith/code/dev/ver3

If "dev" existed, it would be needed to extract "ver_usa", "ver_mexico", "ver3", etc. The dir name needing to be extracted would exactly follow "dev".

something like this, assuming "main" and "ver2" are not constant

some_rpm_name="some rpm"
PATH=/usr/local/home/jsmith/code/main
#PATH2=/usr/local/home/jsmith/code/dev/ver2
s=${PATH##*/}
case "$s" in
  *main ) RPM_NAME="${some_rpm_name}_main";;
  *ver2) RPM_NAME="${some_rpm_name}_ver2";;
esac
echo $RPM_NAME

Use grep and check for return value?

Also, you can run python in Makefile.

It looks like the last element of the path is always the one you want.

rpmname=$rpmname+${pathname##*/}

or

rpmname=$rpmname+$(basename pathname)