Watching diff output in command numbers.
Usage: wdiff.sh [-h | --help] [options] [-wd "wordsDelimiter"]
[--awk-filter '/RegExp/'] [-i interval]
[-if intFormat] "shell command"
-h, --help Print this page.
-c, --clrscr Clear screen after each test.
-wbo "Was(became)" output. Difference by default.
-wd Words delimiter.
--awk-filter Regular expression for searching numbers.
-i Interval (1 default).
-if Interval format. Could be "s" - seconds
(default), or "ms" - milliseconds.
Warning! Be careful to put the shell command with arguments in
the double quotes, else an arguments will be skipped.
Exit codes:
0 Successfull exit.
1 Error while parsing arguments.
2 Exit code after display this help page.
3 Error while executing target program.
4x Error while processing output files.