I want to set a variable in shell to true depending on if certain requirement is met. That requirement is determined by awk.
So here's what I do
$ different=false
$ awk 'if (certain requirements met) {'different=true'}' inputfile
$ if $different; then
print "Different
However, different does not set to true.
PS my certain requirements met is definitely true.
Thank you
awk cannot set variables in the shell that called it. You can use exit to set awk's exit status:
$ if awk 'if (certain requirements met) {exit 0} else { exit 1 }' inputfile; then
> printf "different\n"
> fi
Or capture the output of awk in a variable:
$ different=$( awk 'if (certain requirements met) { print "true" } else { print "false" }' inputfile )
$ if [[ $different = true ]]; then
> printf "different\n"
> else
> printf "Not different"
> fi
awk though? For example if a certain requirement is met, exit awk, meaning ignore the rest of awk code. I do NOT want it to exit the shell code. Just ignore the rest of awk and continue the rest of the code...
awk has its own exit command, which just exits the awk process, not the shell that calls awk.exit in awk?Here is how you do it.
different=$(awk 'if (certain requirements met) {print "true"}' infile)
else print "false"?
awkfor all the test, no need for the extraiftest.