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Top Forums Shell Programming and Scripting exiting a child without stopping the parent Post 302136820 by madpenguin on Wednesday 19th of September 2007 10:31:41 PM
Old 09-19-2007
I agree. Thanks for the info. I need to brush up on my trapping instead of always using exit 1 to catch errors.

I have one parent and about 150 children. If I remove the || exit 1 from the parent then I'm in big trouble because the previous child needs to complete sucessfully before the next one is run or it will snowball on me.

I just need to check that $variable = $variable before the child is run (or before the child actually gets going), but $variable is ever changing in each script so I can't set it from the parent.. If $variable != $variable then it needs to be skipped and the next child in line needs to be ran... I'll hack it for now and put it on my TODO list...

Code:
set -e
variable1=1
variable2=2

if [ "$variable1" = "2" ]; then
   bail=yes
elif [ "$variable1" = "1" ]; then
    true
fi

if [ "$bail" != "yes" ]; then
   # lots more stuff to run in this child script
fi

Ugly but will work. Thanks again.
 

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envdir(8)						      System Manager's Manual							 envdir(8)

NAME
envdir - runs another program with environment modified according to files in a specified directory. SYNOPSIS
envdir d child DESCRIPTION
d is a single argument. child consists of one or more arguments. envdir sets various environment variables as specified by files in the directory named d. It then runs child. If d contains a file named s whose first line is t, envdir removes an environment variable named s if one exists, and then adds an environ- ment variable named s with value t. The name s must not contain =. Spaces and tabs at the end of t are removed. Nulls in t are changed to newlines in the environment variable. If the file s is completely empty (0 bytes long), envdir removes an environment variable named s if one exists, without adding a new vari- able. EXIT CODES
envdir exits 111 if it has trouble reading d, if it runs out of memory for environment variables, or if it cannot run child. Otherwise its exit code is the same as that of child. SEE ALSO
supervise(8), svc(8), svok(8), svstat(8), svscanboot(8), svscan(8), readproctitle(8), fghack(8), pgrphack(8), multilog(8), tai64n(8), tai64nlocal(8), setuidgid(8), envuidgid(8), softlimit(8), setlock(8) http://cr.yp.to/daemontools.html envdir(8)
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