add countbytes

diff --git a/countbytes b/countbytes
new file mode 100755 (executable)
index 0000000..e2691af
--- /dev/null
+++ b/countbytes
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+trap "exit 2" USR1
+
+err() {
+        printf "error: server not detected, needs to be set manually\n" >&2
+        printf "set \$SERVER or modify the script itself\n" >&2
+        kill -USR1 "$$"
+}
+
+# ... && ... || is not an if-then-else, but this works because
+# there's no way for only one printf to fail
+[ -z "$SERVER" ] && SERVER=$(which > /dev/null 2>&1 apache2 && printf "apache2" || which > /dev/null 2>&1 nginx && printf "nginx" || err)
+
+{ zcat /var/log/"$SERVER"/access.log.*.gz; cat /var/log/"$SERVER"/access.log /var/log/"$SERVER"/access.log.1; } | grep --color=auto -a "$@" | awk 'match($0, /\" [0-9]{3} [0-9]+ \"/) { matchp = substr($0, RSTART, RLENGTH); split(matchp, nums, " "); n+=nums[3] } END {print n}'