Date Created: Thu 25-Nov-2010

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Shell script to replace string using korn shell.

replaceString()
{
###################################################
# Replace string 1 with string 2.
# Takes 4 arguments eg:
# replaceString "Directory" "file" "search_string" "replace_string"
#
###################################################
if [ $# -ne 4 ]
then
print "\nInvalid Entry! Please verify value and try again!\n"
exit 1
fi
cd $1
if [ $? -ne 0 ]; then
print "\n\nERROR Could not cd to dir \"${1}\"!!\n\n"
exit 1
fi
if [[ ! -f ${2} ]]; then
print "\n\nERROR \"${2}\" does not exist in \"${1}\"!!"
print " - Please re-validate and try again!\n\n"
exit 1
fi
print " Replacing... \"$2\": Replacing \"$3\" with \"$4\" "
sed -e s!"$3"!"$4"!g $2 > $$_.tmp
if [ $? -ne 0 ]
then
echo "\n\nERROR in sed command during replace substring \"$2\""
echo " - No changes made.\n\n"
exit 1;
fi
mv $$_.tmp $2

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Steve Robinson - IBM Champion 2013

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Steve Robinson has been working in IT for over 20 years and has provided solutions for many large-enterprise corporate companies across the world. Steve specialises in Java and Middleware.

In January 2013, I was awarded the prestigous 'IBM Champion' accolade.


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