Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [Y] [Z] umask command 2nd uname command 2nd unarchiving files about uncompressing while uncompress command 2nd uncompressing files about 2nd 3rd before installing software unarchiving while uniq command 2nd units utilities 2nd Unix [See also commands; configuring; utilities.] choosing versions of common directories in 2nd connecting to finding software compatible with identifying default system shell Internet terminology in removing files as root user responsibilities of root users 2nd 3rd shells in summary table of flags and commands types of access to untar command unzip command 2nd unzipping files 2nd 3rd Usenet news choosing news reader main categories for reading news with pine with tin user and system time users [See also root users.] changing identity with su checking userid information communicating to other file ownership by finding out who is logged on monitoring 2nd 3rd setting aliases for csh utilities bc cal 2nd commands and flags for defined dmesg expr 2nd ispell last look 2nd lp 2nd rsync 2nd script sudo 2nd tidy 2nd units 2nd watch 2nd uudecode command 2nd 3rd uuencode command 2nd |