I needed the check if a file existed in a directory as the migrate script wasn't recognising the file.  To check if a file exists: FILE={your-directory-path} if test -f "$FILE"; then echo "$FILE exists." fi  If your directory path is /Users/{your name}/Sites/migrate/local_dest_dir/fish/../media/apple-store.png FILE=/Users/{your name}/Sites/migrate/local_dest_dir/fish/../media/apple-store.png if test -f "$FILE"; then echo "$FILE...

Regular expressions (regex) are extremely useful in extracting information from any text by searching for one or more matches of a specific search pattern. The basic anchors - ^ and $ expression action ^The matches any string that starts with The end$ matches a string that ends with end ^The end$ exact string match (starts and ends with The end) pragmatic matches any string that has the text pragmatic in it   The basic quantifiers — * + ? and...