Does Kornshell wait until one command completes before running the next command?

ShaqDiesel · 09-10-2008, 07:32 PM

I am writing a script that installs perl modules; here are the commands:

perl Makefile.PL
make
make test
make install

I can't remember, will kornshell wait until one command finishes before running the next one or does it just start one command and immediately start the other right after? In that case should I put a 'sleep 5' between each command? Thanks.

CRC123 · 09-10-2008, 07:39 PM

nope, all shells will wait for a command to complete execution until it is done.

rlhartmann · 09-10-2008, 09:41 PM

You could put all commands on the same line separated by ';'

Quote:

perl Makefile.PL ;make ;make test; make install

If you're doing that, you probably don't even need to do the "make test"
part, as this usually only verifies that things were created correctly
and that your system has the correct setup for the install.

chrism01 · 09-10-2008, 11:21 PM

It'll still only do one cmd at a time...

normscherer · 09-10-2008, 11:49 PM

Quote:

Originally Posted by rlhartmann

You could put all commands on the same line separated by ';'

If you're doing that, you probably don't even need to do the "make test"
part, as this usually only verifies that things were created correctly
and that your system has the correct setup for the install.

There is no difference between a semi-colon and a newline in a shell script. With a semi-colon you just put things on one line but the sematics are the same.