shell/ not bash/

bash/next.awk

@@ -1,38 +0,0 @@
-# awk script to increment the digits, preserve the zero prefix, add string descriptor if supplied, and add back extension
-
-BEGIN {
-# Builtin variable, "field seperator", blank by default. The neatness of this is
-# the main reason I use awk to parse the filename.
-FS = "."
-}
-
-{
-
-# another reason why awk is great for this:
-newnum = $1 + 1
-
-# could I do this with a simpler regex to select all leading zeros?
-nzeros = length($1) - length(int(newnum))
-leadingzeros = ""
-if (nzeros > 0)
-  for (i = 1; i <= nzeros; i++)
-    leadingzeros = sprintf("%s%s", leadingzeros, "0")
-
-if (nzeros > 0)
-  newnum = sprintf("%s%s", leadingzeros, newnum)
-
-# start by prefixing the number, now with leading zeros
-finalstr = newnum
-
-# allow an arg input to fill out descriptor string.
-if (arg != "")
-    finalstr = sprintf("%s.%s", finalstr, arg)
-
-# append last field by default
-finalstr = sprintf("%s.%s", finalstr, $NF)
-
-}
-
-END {
-print finalstr
-}