Learn Difference Between "su" and "su -" Commands in Linux
History. The command su, including the Unix permissions system and the setuid system call, was part of Version 1 Unix.Encrypted passwords appeared in Version 3.. Usage. When run from the command line, su asks for the target user's password, and if authenticated, grants the operator access to that account and the files and directories that account is permitted to access. sudo command in Linux with Examples - GeeksforGeeks Options. 1. -V: The -V (version) option causes sudo to print the version number and exit. If the invoking user is already root, the -V option will print out a list of the defaults sudo was compiled with. 2. -l: The -l (list) option will print out the commands allowed (and forbidden) the user on the current host. This shows the current user can use all commands as sudo. su(1) - Linux manual page
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The su Command - The Linux Information Project (LINFO
Learn Difference Between "su" and "su -" Commands in Linux
Common Linux Commands - dummies