a command like
ls $NHBPWDBATCH/PWD50*.TXT >> appopippo 2>/dev/null
does not work when there are many files

How can i substitute it ?

On 29 Aug., 10:47, pincopallo...@yahoo.it wrote:
> a command like
> ls $NHBPWDBATCH/PWD50*.TXT >> appopippo 2>/dev/null
> does not work when there are many files
>
> How can i substitute it ?


Maybe this can you to:
set -o xtrace

After you have set this option every command is displayed how the
shell interpretes it...

pincopallo_it@yahoo.it writes:

> a command like
> ls $NHBPWDBATCH/PWD50*.TXT >> appopippo 2>/dev/null
> does not work when there are many files
>
> How can i substitute it ?

Here's one way

cd $NHBPWDBATCH
ls PWD50*.TXT >> appopippo 2>/dev/null

or

find $NHBPWDBATCH -name 'PWD50*.TXT' >> appopippo 2>/dev/null

On Aug 29, 1:45 pm, Maxwell Lol <nos...@com.invalid> wrote:
> pincopallo...@yahoo.it writes:
> > a command like
> > ls $NHBPWDBATCH/PWD50*.TXT >> appopippo 2>/dev/null
> > does not work when there are many files
>
> > How can i substitute it ?
>
> Here's one way
>
> cd $NHBPWDBATCH
> ls PWD50*.TXT >> appopippo 2>/dev/null

This doesn't solve any problem, and on the contrary introduce a bug
if the cd fails.
Plus the output is different.

>
> or
>
> find $NHBPWDBATCH -name 'PWD50*.TXT' >> appopippo 2>/dev/null

This one avoids the expansion of the filenames on the "command line",
and thus will indeed
work with any number of files.
Just take care that 1) it's recursive, 2) if "$NHBPWDBATCH" has a
space it's a good idea to double quote it

with bash (and probably with other shells with a printf builtin) you
can also do:

shopt -s nullgob # so that the expansion returns nothing if no file
are found.
printf "%s\n" "$NHBPWDBATCH"/PWD50*.TXT >> appopippo

On Wed, 29 Aug 2007 01:47:28 -0700, pincopallo_it@yahoo.it
<pincopallo_it@yahoo.it> wrote:
>
>
> a command like
> ls $NHBPWDBATCH/PWD50*.TXT >> appopippo 2>/dev/null
> does not work when there are many files
>
> How can i substitute it ?
>
ls $NHBPWDBATCH | grep 'PWD50.*\.TXT' >> appopippo 2>/dev/null


--
The goal of science is to build better mousetraps. The goal of nature
is to build better mice.

Bill Marcum wrote:
> On Wed, 29 Aug 2007 01:47:28 -0700, pincopallo_it@yahoo.it
> <pincopallo_it@yahoo.it> wrote:
>>
>> a command like
>> ls $NHBPWDBATCH/PWD50*.TXT >> appopippo 2>/dev/null
>> does not work when there are many files
>>
>> How can i substitute it ?
>>
> ls $NHBPWDBATCH | grep 'PWD50.*\.TXT' >> appopippo 2>/dev/null
>

More precise is:

\ls $NHBPWDBATCH 2>/dev/null | grep '^PWD50.*\.TXT$' >> appopippo

and with the OP's full-path listing is:

\ls $NHBPWDBATCH 2>/dev/null |
sed -n 's#^PWD50.*\.TXT$#'$NHBPWDBATCH'&#p' >> appopippo

Maybe this works, too:

echo $NHBPWDBATCH/PWD50*.TXT | tr ' ' '\n' >> appopippo

--
Michael Tosch @ hp : com

pgas wrote:
> On Aug 29, 1:45 pm, Maxwell Lol <nos...@com.invalid> wrote:
>> pincopallo...@yahoo.it writes:
>>> a command like
>>> ls $NHBPWDBATCH/PWD50*.TXT >> appopippo 2>/dev/null
>>> does not work when there are many files
>>> How can i substitute it ?
>>
>> find $NHBPWDBATCH -name 'PWD50*.TXT' >> appopippo 2>/dev/null
>
> This one avoids the expansion of the filenames on the "command line",
> and thus will indeed
> work with any number of files.
> Just take care that 1) it's recursive, 2) if "$NHBPWDBATCH" has a
> space it's a good idea to double quote it

find "$NHBPWDBATCH" -maxdepth 1 -name 'PWD50*.TXT' > appopippo 2>/dev/null

--
Best regards | "The only way to really learn scripting is to write
Cyrus | scripts." -- Advanced Bash-Scripting Guide