06-06-2008
wait ${!}
In one of the shell script (Where abinitio graph is called), the last line is wait ${!}. What does this wait ${!} mean ???
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written a script which uses wait as follows
Main.sh
#!/usr/bin/ksh
nohup scrpit1 1 &
pid_1=$!
nohup scrpit1 2 &
pid_2=$!
wait $pid_1
wait $pid_2
nohup scrpit1 3 &
pid_1=$!
nohup scrpit1 4 & (1 Reply)
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LEARN ABOUT DEBIAN
explain_wait_or_die
explain_wait_or_die(3) Library Functions Manual explain_wait_or_die(3)
NAME
explain_wait_or_die - wait for process to change state and report errors
SYNOPSIS
#include <libexplain/wait.h>
void explain_wait_or_die(int *status);
DESCRIPTION
The explain_wait_or_die function is used to call the wait(2) system call. On failure an explanation will be printed to stderr, obtained
from explain_wait(3), and then the process terminates by calling exit(EXIT_FAILURE).
This function is intended to be used in a fashion similar to the following example:
explain_wait_or_die(status);
status The status, exactly as to be passed to the wait(2) system call.
Returns:
This function only returns on success. On failure, prints an explanation and exits.
SEE ALSO
wait(2) wait for process to change state
explain_wait(3)
explain wait(2) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.52
Copyright (C) 2008 Peter Miller
explain_wait_or_die(3)