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I came accross a script containing these codes. As am new to unix so trying to write a new script with these code to test .

CUR_DIR=${0%/*}
if [ "$CUR_DIR" != "$0" ]
then
cd $CUR_DIR

Thank you. I was trying to print the path/file inside the script by using
DIR=$0
echo $DIR

but its not working...

${0%/*} means what? could anybody help me.