Check if file exists or not Post: 302889715

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Top Forums Shell Programming and Scripting Check if file exists or not Post 302889715 by wisecracker on Sunday 23rd of February 2014 12:06:16 PM

Old

02-23-2014

Registered User

Longhand using OSX 10.7.5 default shell.
This can be simplified considerably.

Code:

#!/bin/sh
if [ "$(ls ~/AudioScope*.sh 2>/dev/null)" == "" ]
then
	echo "File(s) do(es) not exist..."
else
	ls ~/AudioScope*.sh
fi
exit 0

Results...

Code:

Last login: Sun Feb 23 16:53:36 on ttys000
AMIGA:barrywalker~> chmod 755 filelist.sh
AMIGA:barrywalker~> ./filelist.sh
/Users/barrywalker/AudioScope.sh
/Users/barrywalker/AudioScope_02-01-2014.sh
/Users/barrywalker/AudioScope_03-01-2014.sh
AMIGA:barrywalker~> _

Last edited by wisecracker; 02-23-2014 at 01:10 PM.. Reason: Added '2>/dev/null'...

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perror

PERROR(1)						       MySQL Database System							 PERROR(1)

NAME

       perror - explain error codes

SYNOPSIS

       perror [options] errorcode ...

DESCRIPTION

       For most system errors, MySQL displays, in addition to an internal text message, the system error code in one of the following styles:

	   message ... (errno: #)
	   message ... (Errcode: #)

       You can find out what the error code means by examining the documentation for your system or by using the perror utility.

       perror prints a description for a system error code or for a storage engine (table handler) error code.

       Invoke perror like this:

	   shell> perror [options] errorcode ...

       Example:

	   shell> perror 13 64
	   OS error code  13:  Permission denied
	   OS error code  64:  Machine is not on the network

       To obtain the error message for a MySQL Cluster error code, invoke perror with the --ndb option:

	   shell> perror --ndb errorcode

       Note that the meaning of system error messages may be dependent on your operating system. A given error code may mean different things on
       different operating systems.

       perror supports the following options.

       o   --help, --info, -I, -?

	   Display a help message and exit.

       o   --ndb

	   Print the error message for a MySQL Cluster error code.

       o   --silent, -s

	   Silent mode. Print only the error message.

       o   --verbose, -v

	   Verbose mode. Print error code and message. This is the default behavior.

       o   --version, -V

	   Display version information and exit.

COPYRIGHT

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SEE ALSO

       For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online
       at http://dev.mysql.com/doc/.

AUTHOR

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MySQL 5.5							    01/30/2014								 PERROR(1)