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# wc.awk --- count lines, words, characters
#
# Arnold Robbins, arnold@skeeve.com, Public Domain
# May 1993
# Options:
# -l only count lines
# -w only count words
# -c only count characters
#
# Default is to count lines, words, characters
#
# Requires getopt() and file transition library functions
BEGIN {
# let getopt() print a message about
# invalid options. we ignore them
while ((c = getopt(ARGC, ARGV, "lwc")) != -1) {
if (c == "l")
do_lines = 1
else if (c == "w")
do_words = 1
else if (c == "c")
do_chars = 1
}
for (i = 1; i < Optind; i++)
ARGV[i] = ""
# if no options, do all
if (! do_lines && ! do_words && ! do_chars)
do_lines = do_words = do_chars = 1
print_total = (ARGC - i > 2)
}
function beginfile(file)
{
lines = words = chars = 0
fname = FILENAME
}
function endfile(file)
{
tlines += lines
twords += words
tchars += chars
if (do_lines)
printf "\t%d", lines
if (do_words)
printf "\t%d", words
if (do_chars)
printf "\t%d", chars
printf "\t%s\n", fname
}
# do per line
{
chars += length($0) + 1 # get newline
lines++
words += NF
}
END {
if (print_total) {
if (do_lines)
printf "\t%d", tlines
if (do_words)
printf "\t%d", twords
if (do_chars)
printf "\t%d", tchars
print "\ttotal"
}
}