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Top Forums Shell Programming and Scripting [ ! -e a.log ] & [ ! -f a.log ] difference b/w these two Post 302269762 by himvat on Thursday 18th of December 2008 02:56:40 PM
Old 12-18-2008
[ ! -e a.log ] & [ ! -f a.log ] difference b/w these two

Code:
if [ ! -e a.log ]; then
        touch a.log
fi

...................................

if [ ! -f a.log ]; then
        touch a.log
fi

Hi ,

Are the above two meant for same purpose i.e finding & creating a.log ?

I would really appreciate if you could explain the purpose of " ! " & " -f "
in these .

thanks
 

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svcdumplog(1m)															    svcdumplog(1m)

NAME
svcdumplog - Prints contents of a binary serviceability log file SYNOPSIS
svcdumplog [-s num_of_entries] logfile OPTIONS
The -s flag tells svcdumplog to skip the first num_of_entries log entries before printing, where num_of_entries is a number. DESCRIPTION
The svcdumplog program will print the contents of a binary log file. DCE components log important information about their activities and state via the DCE serviceability interface. The log messages can be routed as desired via the dcecp log object. The messages can also be written in either binary or in text format (information about specify- ing message format can be found in svcroute(5)). When binary format has been specified for a component's messages, each log entry will be written as a binary record of data defined (in dce/svclog.h) as the contents of the serviceability prolog structure. The svcdumplog utility will print the contents of such a binary log file as readable text. RELATED INFORMATION
dce_svc_log_get(3), dce_svc_log_close(3), dce_svc_log_open(3), dce_svc_log_rewind(3), svcroute(5), log(1m) Books: OSF DCE Porting and Testing Guide, OSF DCE Application Development Guide svcdumplog(1m)
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