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Full Discussion: grep in a loop
Top Forums Shell Programming and Scripting grep in a loop Post 67833 by criglerj on Monday 28th of March 2005 03:46:12 PM
Old 03-28-2005
Quote:
Originally Posted by gundu
yes, i take the user input and check to see it is there in the log file for that date and userid, if not exit with echo doesn't exist
I'm taking this to mean there are zero lines in the resulting output. (This is a different question than whether a given userid exists.)

Okay, this is where a temporary file begins to make sense: You need the same intermediate data for two different purposes. So change it this way:

Code:
grep ... > tempfile
if [ -s tempfile ]; then
    Mail ... < tempfile
else
    echo No such userid $UserId >&2
    break
fi
rm tempfile

 

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CCS_CONFIG_VALIDATE(8)					      System Manager's Manual					    CCS_CONFIG_VALIDATE(8)

NAME
ccs_config_validate DESCRIPTION
Usage: ccs_config_validate [options] OPTIONS
-h Print this help, then exit -V Print program version information, then exit -v Produce verbose output Validating XML configuraton files: -f configfile Validate an alternate config file without preloading it with default values. -l configfile Validate an alternate config file with preloading of default values (recommended option). Advanced options: -r Force validation of runtime config -C config_loader Override config plugin loader -t tempfile Force temporay file to tempfile -n Do not remove temporary file -o Overwrite temporary file (dangerous) DEFAULT
Default operation for ccs_config_validate is to load the currently configured environment and verify the outcoming configuration. Example 1: current environment uses a configuration file (/etc/cluster/cluster.conf). The user modifies cluser.conf and executes ccs_config_validate without options. The tool will validate the modified cluster.conf after including default values. Example 2: current environment is set to load the configuration from LDAP. Users modifies LDAP databse and before pushing the change to the nodes, she/he can issue ccs_config_validate to verify the contents o the LDAP database automatically (as long as the correct LDAP environment is set in the cman/cluster sysconfig/defaults files). September 2009 CCS_CONFIG_VALIDATE(8)
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