The way to see if something works in AWK is to read the 2004 Open group POSIX standard on it: https://pubs.opengroup.org/onlinepubs/009695399/utilities/awk.htm

The way to see if something works in AWK is to read the 2004 Open group POSIX standard on it: https://pubs.opengroup.org/onlinepubs/009695399/utilities/awk.html https://pubs.opengroup.org/onlinepubs/009695399/utilities/aw... Here’s my AWK (OK, shell + AWK) one liner: while echo -n '] ' ; do read a; awk 'BEGIN{print '"$a"'}' ; done It’s a calculator; type in something like 2 + 2 and it will give you 4. Since standard AWK has advanced math functions like log, it’s a full blown scientific calculator. The only tricky part is that you hit Ctrl + C (not Ctrl + D) to exit it.