|
|
| pincopallo_it@yahoo.it 2007-08-29, 7:17 am |
| 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 help you to:
set -o xtrace
After you have set this option every command is displayed how the
shell interpretes it...
| |
| Maxwell Lol 2007-08-29, 7:17 am |
| 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:
>
>
> 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
| |
| Bill Marcum 2007-08-29, 7:17 am |
| 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.
| |
| Michael Tosch 2007-08-29, 1:20 pm |
| Bill Marcum wrote:
> On Wed, 29 Aug 2007 01:47:28 -0700, pincopallo_it@yahoo.it
> <pincopallo_it@yahoo.it> wrote:
> 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 $NHBPWDBATCH/PWD50*.TXT | tr ' ' '\n' >> appopippo
--
Michael Tosch @ hp : com
| |
| Cyrus Kriticos 2007-08-29, 7:26 pm |
| pgas wrote:
> On Aug 29, 1:45 pm, Maxwell Lol <nos...@com.invalid> wrote:
>
> This one avoids the expansion of the filenames on the "command line",
> and thus will indeed
> work with any number of files.
> Just take care that 1) it's recursive, 2) if "$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
|
|
|
|