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xyz
Asked: 2010-01-11 03:31:07 +0800 CST

Bash & blocking processes

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Could you help me with the Bash syntax to achieve the following?

  1. Run a blocking process without blocking execution of the rest of the script.
  2. Run a standard "non-blocking" process (e.g. lsof).
  3. "Rejoin" the blocking process so that ^C will stop that process, then end execution of the script.
unix bash shell unix-shell

2 Answers

  1. Best Answer

    Is this an idiomatic way to do it?

    #!/bin/bash
function handle_int()
{
    kill $BCPID
    exit
}
trap handle_int INT

blocking_command &
BCPID=$!

non_blocking_command
wait
    • 4 
  2. # script
command &
# more script
wait
    • 0