On Wed, Feb 11, 2004 at 11:48:09AM +0100, Jim Meyering wrote:
> $ echo / // /// //// .// //.
> $ echo abc| tr -t ab //
Here's a trivial little debugging aid I can't live without, for
testing and isolating just such things without driving oneself
crazy, or resorting to painful contortions like that "tr"
pipeline. Unlike echo:
- because it's not a shell builtin, you can be sure that
whatever effects you see are caused by the shell's generic
command-line parsing, rather than by any special-case code
for the particular command itself (well, you could get that
by saying "/bin/echo", but see below)
- it does *no* parsing or interpretation of the command-line
arguments; it just spits out what it sees -- benefit as above
- (irrelevent to your current problem) it shows you the
argument boundaries, so you can quickly see whether your
evals and variable substitutions expanded to:
prargs a b c
or:
prargs "a b c"
or:
prargs a "b " c
The blurb's twice the size of the program itself :-/
--
| | /\
|-_|/ > Eric Siegerman, Toronto, Ont. erics@xxxxxxxxxxxx
| | /
It must be said that they would have sounded better if the singer
wouldn't throw his fellow band members to the ground and toss the
drum kit around during songs.
- Patrick Lenneau
/*
* Copyright (C) 1998, by Eric Siegerman
* You can do whatever you want with this thing -- commercial or otherwise.
* No restrictions.
*/
#include <stdio.h>
main(int argc, char *argv[])
{
int i;
for (i=0; i<argc; ++i)
printf("%d: <%s>\n", i, argv[i]);
}
