|Next||Unix Command Internals||30|
stopafter 30 command arg arg arg...
sudo works similarly:
sudo command arg arg arg...
It runs as root, then prompts for a password, and execs the command if the password is correct
nice -10 command arg arg arg...
It sets the nice value and execs the command
Whenever a process tries to access a file, if the path begins with /, the lookup starts at the process's root directory
This is almost always /
But a pointer to the root inode is stored in each process structure
chroot dir command arg arg arg...
chroot sets the root directory inode and execs the command
Subsequent file lookups are interpreted relative to the new root
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