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Full Discussion: Empty file check
Top Forums Shell Programming and Scripting Empty file check Post 302890390 by Akshay Hegde on Wednesday 26th of February 2014 02:05:19 PM
Old 02-26-2014
This might help you

Code:
$ touch test1
$ cat test1
$ touch test2
$ echo 'I am not empty' >test2
$ cat test2
I am not empty

Code:
#!/bin/bash



empty(){
	for file in $(echo "$*"); do 
		[ -s  "$file"  ] || return 1
	done
}

# Call function with one empty and non empty file
empty test1 test2

if [ "$?" -eq "0" ]; then
	echo "all fine"
else
        echo "something went wrong"
fi 

# Call function with non empty files
empty test2 test2

if [ "$?" -eq "0" ]; then
	echo "all fine"
else
	echo "something went wrong"
fi

Code:
$ bash test
something went wrong
all fine

---------- Post updated at 01:35 AM ---------- Previous update was at 01:30 AM ----------

what I wanted to suggest you that create function like above according to your need and play with exit code it's easy.
 

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rendercheck(1)						      General Commands Manual						    rendercheck(1)

NAME
rendercheck - simple tests of the X Render extension. SYNOPSIS
rendercheck [-d|--display display] [-i|--iter] [--sync] [-t|--tests test1,test2,test3,...] [-o|--ops op1,op2,op3,...] [-v|--verbose] [--minimalrendering] DESCRIPTION
rendercheck is a set of simple tests of the X Render extension. It is designed for authors of Render implementations in X Servers. OPTIONS
-d|--display display Specifies the display to test against. -i|--iter iterations Specifies the number of times to repeat each operation before sampling results. Some X Servers may behave differently (hardware vs software rendering paths) depending on the previous operations done, so this may be used to influence the server's choices. --sync Enables synchronous xlib operation, for debugging. -t|--tests test1,test2,test3... Enables only a specific subset of the possible tests. Test names include fill, dcoords, scoords, mcoords, tscoords, tmcoords, blend, composite, cacomposite, gradients, repeat, triangles, and bug7366. Names must be separated by commas and have no spaces. -f|--formats format1,format2,format3... Enables only a specific subset of the possible formats. Only formats listed in the server-supported format list are available. Names must be separated by commas and have no spaces. -o|--ops Enables only a specific subset of the Render operators. -v|--verbose Enables verbose printing of information on tests run, and successes and failures. --minimalrendering Disables copying of offscreen destinations to the window, which is on by default to provide the user with visual feedback. BUGS
Several limitations are documented in the TODO file accompanying the source. Please report any further bugs you find to http://bugs.freedesktop.org/. AUTHORS
Eric Anholt, with help from Keith Packard. rendercheck(1)
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