Decomp: Understand an if statement

[bdas123]

What does the following if statement mean? This can be found in the decomp code.

484 if [ $? -ne 0 ] 485 then 486 echo ${txtred} 487 echo "ERROR:" 488 echo "ERROR:" 489 echo "ERROR During nem_spread execution. Check error output above and rerun" 490 echo "ERROR:" 491 echo "ERROR:" 492 echo ${txtrst} 493 exit 1

[gsjaardema]

$? Expands to the exit status of the most recently executed foreground pipeline.

It checks whether the nem_spread execution on the preceding line succeeded or exited with an error.

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