save this code to the file e.g., optimize.sh #!/bin/bashoptimize() { jpegoptim *.jpg —strip-all for i in * do if test -d $i then cd $i echo $i optimize cd ..
save this code to the file e.g., optimize.sh #!/bin/bashoptimize() { jpegoptim *.jpg —strip-all for i in * do if test -d $i then cd $i echo $i optimize cd ..