1. As an example, you are going to rename/replace the DEV word to PRD word under the directory /usr/sap/DEV which contains the following filenames.
# cd /usr/sap/DEV # ls -lrt DEVdata1.txt DEVdata2.txt DEVdata3.txt DEVdata4.txt DEVdata5.txt DEVdata6.txt DEVdata7.txt DEVdata8.txt DEVdata9.txt DEVdata10.txt DEVdata11.txt DEVdata12.txt
2. Execute the following command. This will change all the filenames that contained the DEV word to PRD word.
# ksh
# for i in PRD*; do mv "$i" DEV"${i#PRD}"; done
