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Full Discussion: Condition to check whether configuration file is empty or not?
Top Forums Shell Programming and Scripting Condition to check whether configuration file is empty or not? Post 302584724 by anuragpgtgerman on Sunday 25th of December 2011 01:01:47 AM
Old 12-25-2011
Condition to check whether configuration file is empty or not?
Code:
CMD=$(find "${Release_Container}" -iname "${Release_Name}"_Release.txt)
for i in `cat $CMD`
do
if [[ "${Product_Name}" == "MKS" ]];then
cd ${Sandbox_dir}
CMD1=$(find "${Sandbox_dir}"/* -iname "${Release_Name}" -type d | awk -F/ '{print $(NF)}' | head -1 )
if [[ "${CMD1}" == "${Release_Name}" ]];then
echo -e "################### CHECKOUT START #######################"
si resync --sandbox="${Sandbox_dir}"/$Release_Name/$Release_Name.pj -Y --populate -f --restoreTimestamp --overwriteUnchanged --batch -R
Count_File1=`find "${Sandbox_dir}/"${Release_Name}/ -perm 444 -type f | wc -l`
echo $Count_File1
sleep 5;
si co -R -f -l --nolock -r "${i}" --sandbox="${Sandbox_dir}"/$Release_Name/$Release_Name.pj -Y --batch --forceconfirm=yes
Count_File2=`find "${Sandbox_dir}/"${Release_Name}/ -perm 444 -type f | wc -l`
echo $Count_File2

The above is the code of my script which I am using to fetch the source code of checkpoint label from the MKS tool.Here I want some help to enhance my script ...like to add one more functionality
.IF you see at the top of the code CMD variable is looking for one of the configuration file ..._release.txt.and store that.after that in for loop it is reading the value in CMD varibale i.e. the value
which is in the configuration file and using that value to checkout the source code of that checkpoint lable so ultimately the value in configuration file is checkpoint label.I want your help here
to solve one of my problem i.e. I want if the configuration file is empty then it should display or print that file is blank..I want to know here any condition through which we can check that file is empty or not
like value of i is null

e.g.
Code:
if [ $i == "exist" ];then
checkout
else
file is empty
fi

Thanks
 

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echo

echo(1) 						      General Commands Manual							   echo(1)

NAME

       echo - echo (print) arguments

SYNOPSIS

       [arg] ...

DESCRIPTION

       writes  its  arguments  separated by blanks and terminated by a new-line on the standard output.  It also understands C-like escape conven-
       tions; beware of conflicts with the shell's use of

	      write an alert character
	      backspace
	      print line without appending a new-line
	      form-feed
	      new-line
	      carriage return
	      tab
	      vertical tab
	      backslash
	      the 8-bit character whose
			ASCII code is the 1-, 2-, 3- or 4-digit octal number n, whose first character must be a zero.
	      write an 8-bit value that is the zero-, one-, two- or three-digit octal number
			num

       is useful for producing diagnostics in command files and for sending known data into a pipe.

   Notes
       Berkeley differs from this implementation.  The former does not implement the backslash escapes.  However, the semantics of the escape  can
       be obtained by using the option.  The echo command implemented as a built-in function of follows the Berkeley semantics (see csh(1)).

EXTERNAL INFLUENCES

   Environment Variables
       determines the interpretation of arg as single and/or multi-byte characters.

       If is not specified in the environment or is set to the empty string, the value of is used as a default for each unspecified or empty vari-
       able.  If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead  of  If  any  internationalization
       variable contains an invalid setting, behaves as if all internationalization variables are set to "C".  See environ(5).

   International Code Set Support
       Single- and multi-byte character code sets are supported.

AUTHOR

       was developed by OSF and HP.

SEE ALSO

       sh(1).

BUGS

       No characters are printed after the first This is not normally a problem.

STANDARDS CONFORMANCE

																	   echo(1)
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