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Full Discussion: Command that creates file and also greps that file?
Top Forums UNIX for Dummies Questions & Answers Command that creates file and also greps that file? Post 302326669 by joeyg on Thursday 18th of June 2009 11:37:12 AM
Old 06-18-2009
Hammer & Screwdriver Maybe a ; instead of a | between commands
Since I do not have your first command, I tried to recreate what could be happening. I delete existing op_it.lst file (to make sure I will only run with NEW output). I then run a command directing output to that file. Next I use the ; to run next command. I am getting my expected result.
The | takes output 'to that point' and uses as input to next command; thus your issue of first command creating text file output and not getting anything with second command. Solved when I used ; instead.

Code:
> rm op_it.lst
> ls op_it* > op_it.lst ; grep csv <op_it.lst
op_it_2.csv
op_it_3.csv
op_it_4.csv
op_it_recpt.csv
op_it_ua1.csv
op_it_yr.csv

 

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LEARN ABOUT LINUX

grep-excuses

GREP-EXCUSES(1)                                               General Commands Manual                                              GREP-EXCUSES(1)

NAME

       grep-excuses - search the testing excuses files for a specific maintainer

SYNOPSIS

       grep-excuses [options] [maintainer|package]

DESCRIPTION

       grep-excuses  downloads  the  update_excuses.html file and greps it for the specified maintainer name.  The libwww-perl package is required
       for this script.  If no name is given on the command line, first the environment variable DEBFULLNAME is used if it is defined, and failing
       that, the configuration variable described below is used.

OPTIONS

       --no-conf, --noconf
              Do not read any configuration files.  This can only be used as the first option given on the command-line.

       --wipnity, -w
              Get information from <http://release.debian.org/migration/>.  A package name must be given when using this option.

       --help Show a brief usage message.

       --version
              Show version and copyright information.

CONFIGURATION VARIABLES

       The  two configuration files /etc/devscripts.conf and ~/.devscripts are sourced in that order to set configuration variables.  Command line
       options can be used to override configuration file settings.  Environment variable settings are ignored for this  purpose.   The  currently
       recognised variable is:

       GREP_EXCUSES_MAINTAINER
              The default maintainer, email or package to grep for if none is specified on the command line.

SEE ALSO

       devscripts.conf(5).

AUTHOR

       Joey Hess <joeyh@debian.org>; modifications by Julian Gilbey <jdg@debian.org>.

DEBIAN                                                           Debian Utilities                                                  GREP-EXCUSES(1)
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