Bash chek if error occured in subprocess (command &)

Question

I running mongodb instance from bash scripts and I need to show user-friendly message if mogngo will crash during startup for some reason.

so I have that sort of code

eval 'mongod --dbpath=$ABS_MONGO_DATA_PATH &' || printf "something bad happened"

but with that sort of notation error handler never called. But if I remove & sing, then after mongo initialization further script do not running because of mongod process waiting for a signals

How could I resolve that issue?

Looks very similar to [this](http://stackoverflow.com/questions/1570262/shell-get-exit-code-of-background-process) — John C, May 16 '14 at 00:16

score 1 · Accepted Answer · answered May 16 '14 at 00:29

1

You don't need eval for this:

{ mongod --dbpath="$ABS_MONGO_DATA_PATH" ||
   printf "something bad happened"; } &

Instead of just running mongod in the background, run the entire command list in the background.

answered May 16 '14 at 00:29

chepner

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Bash chek if error occured in subprocess (command &)

1 Answers1