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Top Forums Shell Programming and Scripting Checking if file exists and unzipping Post 302732961 by Corona688 on Monday 19th of November 2012 11:58:01 AM
Old 11-19-2012
This will fail in many systems because -f will get confused when given more than one argument.

I'd use a for-loop instead, breaking so it only runs once. Or not, if you want to run it over all files...

Code:
for FILE in *.gz
do
        if ! [ -f "$FILE" ] 
        then
                echo "No gz files"
       fi
       echo "$FILE exists"
       break
done


Last edited by Corona688; 11-19-2012 at 01:04 PM..
This User Gave Thanks to Corona688 For This Post:
 

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GRID-MAPFILE-CHECK(8)						  Globus Commands					     GRID-MAPFILE-CHECK(8)

NAME
grid-mapfile-check-consistency - Add an entry to a grid map file SYNOPSIS
grid-mapfile-check-consistency [-h] [-help] [-usage] [-version] grid-mapfile-check-consistency [-mapfile MAPFILE] | [-f MAPFILE] DESCRIPTION
The grid-mapfile-check-consistency program performs basic checks for validity of a gridmap file. These checks include checks for existence, duplication of entries, and valid local user names. If the gridmap file is valid, grid-mapfile-check-consistency exits with a zero exit code, otherwise it exits with a non-zero exit code. In either case, it displays information about its progress as it parses and validates the gridmap file. By default, grid-mapfile-check-consistency will check the gridmap file named by the GRIDMAP environment variable if present. If that variable is not set, it will check the file $HOME/.gridmap for non-root users if present. If that doesn't exist or grid-mapfile-check-consistency is run as root, it will then check /etc/grid-security/grid-mapfile. This can be changed by the use of the -mapfile or -f command-line options. The full set of command-line options to grid-mapfile-check-consistency are: -help, -h, -usage Display the command-line options to grid-mapfile-check-consistency. -version Display the version number of the grid-mapfile-check-consistency command. -mapfile MAPFILE, -f MAPFILE Check the gridmap file named by MAPFILE instead of the default. EXAMPLES
Check that the gridmap file in /etc/grid-security is valid: % grid-mapfile-check-consistency -f /etc/grid-security/grid-mapfile Checking /etc/grid-security/grid-mapfile Verifying grid mapfile existence...OK Checking for duplicate entries...OK Checking for valid user names...OK Check a gridmap file that has an invalid local user name: % grid-mapfile-check-consistency -f /etc/grid-security/grid-mapfile Checking /etc/grid-security/grid-mapfile Verifying grid mapfile existence...OK Checking for duplicate entries...OK ERROR: baduser is not a valid local username ERROR: Found 1 invalid username(s) ENVIRONMENT VARIABLES
The following environment variables affect the execution of grid-mapfile-check-consistency: GRIDMAP Path to the default gridmap to check. FILES
The following files affect the execution of grid-mapfile-check-consistency: $HOME/.gridmap Path to the default gridmap to check if the GRIDMAP environment variable is not set for non-root users. /etc/grid-security/grid-mapfile Path to the default gridmap to check if GRIDMAP environment variable is not set and the above file does not exist. SEE ALSO
grid-mapfile-add-entry(8), grid-mapfile-delete-entry(8) AUTHOR
University of Chicago Globus Toolkit 5.0.1 03/19/2010 GRID-MAPFILE-CHECK(8)
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