help in wait or sleep command - Shell Programming and Scripting

era · #2 (**permalink**) 09-25-2008

Your "and" conditional is wrong, you need to repeat the -e

Code:

while [ ! -e script3.lck -a ! -e script4.lck ]; do

The && goes between two commands, like this:

Code:

while [ ! -e script3.lck ] && [ ! -e script4.lck ]; do

or you could change the flow entirely, to avoid those pesky negations:

Code:

while true; do
  test -e script3.lck && test -e script4.lck && break
  sleep 1
done