kAt wrote: ... > I have an example where this might be useful or then I am not > understanding the difference. > > Let's say you have an executable package in the system and let's call it > pkgX > If you type pkgX in any prompt then /usr/bin/pkgX will be executed
maybe, maybe not (depends upon path). if you don't know where the executable is coming from you can use the command: $ which <program_name> note: some executables are in /usr/bin, some are in /bin or /sbin... which directories are used/searched will depend upon the path, perhaps the shell you are using and of course which user you are. > But let's say you want to download and run a variation of this package, > edit its source and modify it, or just want to run separately a > standalone package in /xyz/packageX/pkgX > If you $cd /xyz/packageX and then $ ./pkgX the standalone would run, > right? While pkgX will run the /usr/bin/pkgX see above... songbird
