1.pwd: This command gives you the print working directory : Which means it will give you the path where you are currently standing.
$ pwd
/usrdev/username/ENV4/eodbatch/prd
username@servername:/usrdev/username/ENV4/eodbatch/prd
$ pwd
/usrdev/username/ENV4/eodbatch/prd
username@servername:/usrdev/username/ENV4/eodbatch/prd