Last Updated: February 25, 2016

Run C as a script, recompiling only when changed

Hot on the heels of a great tip on running C code as a script, I modified it a bit to recompile only when the file changes. It uses the TMPDIR envvar instead of mktmp.

//bin/cat /dev/null; mkdir -p $TMPDIR; HASH="`md5sum 0ドル`"; FILE="$TMPDIR/0ドル_$HASH"; gcc -o "$FILE" "0ドル" && "$FILE" "$@"; exit

#include <stdio.h>

int main(int argc, char *argv[]) {
 int i;
 printf("Arguments:\n");
 for (i = 0; i < argc; i++) {
 printf("%d: %s\n", i, argv[i]);
 }
}

#shell

#script

#bash