UNIX User Password Modifier (2UPM) is a Windows application which is used to modify, generate and manage the user passwords in batch mode for various UNIX/Linux hosts. It may be useful for the UNIX/Linux system administrators, programmers and general users, specially, if you manage or use many UNIX/Linux hosts, you will find it to be very useful due to the following benefits: * Save your valuable time, for instance: change back a password to extend its useful life before it expires, you must enter 10 commands/strings: login - password - passwd - old - new - new - passwd - new - old - old, it will take you a minute nearly if fast and correctly, change 100 passwords will take 100 minutes. 2UPM does this in only a few seconds. * Avoid inputting incorrect passwords or forgetting them. * Free yourself from the troublesome passwords generation and management. Usually, the sources of password change requirement are security ensuring for the OSs and/or applications, internal request (company or department even yourself) and external request (for instance: Sarbanes Oxley (SOX) law). If your OS and/or applications have these requirements, 2UPM can greatly increase your work efficiency in this area.