$ whois awk

Awk

first released in 1977 · by Alfred Aho, Peter Weinberger, Brian Kernighan

$ guessprog --inspect awk

year: 1977
paradigm: procedural
family: c like
memory: automatic gc
binding: dynamic
safety: weak

AWK(7)

AUTHORS: Alfred Aho, Peter Weinberger, Brian Kernighan
HISTORY: AWK was created in 1977 at Bell Labs by Alfred Aho, Peter Weinberger and Brian Kernighan, and its name comes from their initials. They wanted a small language for quick pattern-matching and reporting jobs on text files, the kind of task that would be tedious to write in C. A program is a list of patterns and actions that run against each input line, with fields split automatically into $1, $2 and so on. The three authors published "The AWK Programming Language" in 1988 and a second edition in 2023.
USAGE: Installed on virtually every Unix-like system and still widely used for one-liners and short scripts that slice log files, CSV data and command output. Few people write large programs in it, but many use it every day from the shell.
SEE ALSO: Awk on Wikipedia ↗

$ cat owners.awk

# Total bytes per file owner, from `ls -l` output
# usage: ls -l | awk -f owners.awk
NR > 1 { bytes[$3] += $5; files[$3]++ }

END {
    for (owner in bytes)
        printf "%-10s %5d files %12d bytes\n",
               owner, files[owner], bytes[owner]
}