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bashshell

How to write a bash script that compiles a program, sends output to a log, then checks if the compilation was successful?

I'm trying to make a script with the following goal: on receiving 2 names (1- logfilename, 2- program name), the program should compile the program, and send both outputs to a log.

If successful, then write "compile V" and return 0.
Else "compile X" and return a number.

I tried

#!/bin/bash
    
gcc {$2}.c -Wall -g -o $2> $1 2>&1
exit

I have no idea how to check if it did or didn't succeed and echo V or X.

Solution

  • You can check exit status gcc like this:

    #!/bin/bash

# execute gcc command
gcc "$2".c -Wall -g -o "$2"> "$1" 2>&1

# grab exit status of gcc
ret=$?

# write appropriate message as per return status value
if ((ret == 0)); then echo "compile V"; else echo "compile X"; fi

# return the exit status of gcc
exit $ret