Awk functions and calls from bash scripts [duplicate] - bash

Question

I am converting a CSV file into a table format, and I wrote an AWK script and saved it as my.awk. Here is the my script:
#AWK for test
awk -F , '
BEGIN {
aa = 0;
}
{
hdng = "fname,lname,salary,city";
l1 = length($1);
l13 = length($13);
if ((l1 > 2) && (l13 == 0)) {
fname = substr($1, 2, 1);
l1 = length($3) - 4;
lname = substr($3, l1, 4);
processor = substr($1, 2);
#printf("%s,%s,%s,%s\n", fname, lname, salary, $0);
}
if ($0 ~ ",,,,")
aa++
else if ($0 ~ ",fname")
printf("%s\n", hdng);
else if ((l1 > 2) && (l13 == 0)) {
a++;
}
else {
perf = $11;
if (perf ~/^[0-9\.\" ]+$/)
type = "num"
else
type = "char";
if (type == "num")
printf("Mr%s,%s,%s,%s,,N,N,,\n", $0,fname,lname, city);
}
}
END {
} ' < life.csv > life_out.csv*
How can I run this script on a Unix server? I tried to run this my.awk file by using this command:
awk -f my.awk life.csv

Answer 1

The file you give is a shell script, not an awk program. So, try sh my.awk.
If you want to use awk -f my.awk life.csv > life_out.cs, then remove awk -F , ' and the last line from the file and add FS="," in BEGIN.

Answer 2

If you put #!/bin/awk -f on the first line of your AWK script it is easier. Plus editors like Vim and ... will recognize the file as an AWK script and you can colorize. :)
#!/bin/awk -f
BEGIN {} # Begin section
{} # Loop section
END{} # End section
Change the file to be executable by running:
chmod ugo+x ./awk-script
and you can then call your AWK script like this:
`$ echo "something" | ./awk-script`

Answer 3

Put the part from BEGIN....END{} inside a file and name it like my.awk.
And then execute it like below:
awk -f my.awk life.csv >output.txt
Also I see a field separator as ,. You can add that in the begin block of the .awk file as FS=","