From: Kevin O' Riordan (kor at domain compsoc.com)
Date: Tue 30 Apr 2002 - 09:19:43 IST
Hows about using double quotes in yr bash script as you did in
the perl script ?
#!/bin/bash
echo "$1"
no loss of spaces now.
-kev
On Setting Orange, the 47th day of Discord, Niall O Broin concluded:
> Take the trivial bash script shown which I'll call echo.sh
>
>
> and pass it an argument with spaces in e.g.
>
> echo.sh "a b c d"
>
> and the output will be
>
> a b c d
>
> i.e. all the repeated spaces are compressed to one space.
>
> Take the equally trivial Perl script which I'll call echo.pl
>
> #!/usr/bin/perl
> print "$ARGV[0]\n";
>
> and pass it the same argument as above e.g.
>
> echo.pl "a b c d"
>
> and the output will be
>
> a b c d
>
>
> I've just spent the last 4 hours trying to debug this thinking that it was a
> bug in Pure-FTPD [Pure-FTPD has the facility that it can run a program
> whenever a file is uploaded. It does this by writing details of the uploaded
> file to a pipe which pipe is then read by a companion program, which spawns
> the processing program of your choice for every uploaded file. The program
> spawned is passed the path to the uploaded file.
>
> Well, as I hadn't used this facility before I was trying it out and in my
> stupidity as a test program I had a shell script something like the above
> and I discovered this space squashing problem. I assumed it was a problem
> with Pure-FTPD and eventaully came to the conclusion that the problem had to
> be in execl, which seemed a little unlikely. Then the Gods decided to take
> pity on me and inspired me to do some command line experiments with such
> areguments to a shell script.
>
> To add to the sillyness, leading or trailing spaces to a shell script's
> arguments are removed altogether.
>
>
> So, is this a Bash bug or just a feature I don't understand ?
>
>
>
> Niall
>
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