1. The GNU shell utilities are a set of useful system utilities that are often used in shell scripts. The sh-utils package includes basename (to remove the path prefix from a specified pathname), chroot (to change the root directory), date (to print/set the system time anddate), dirname (to remove the last level or the filename from a givenpath), echo (to print a line of text), env (to display/modify theenvironment), expr (to evaluate expressions), factor (to print primefactors), false (to return an unsuccessful exit status), groups (toprint the groups a specified user is a member of), id (to print the real/effective uid/gid), logname (to print the current login name),nice (to modify a scheduling priority), nohup (to allow a command to continue running after logging out), pathchk (to check a file name's portability), printenv (to print environment variables), printf (to format and print data), pwd (to print the current directory), seq (to print numeric sequences), sleep (to suspend execution for a specified time), stty (to print/change terminal settings), su (to become another user or the superuser), tee (to send output to multiple files), test(to evaluate an expression), true (to return a successful exit status), tty (to print the terminal name), uname (to print system information), users (to print current users' names), who (to print a list of the users who are currently logged in), whoami (to print the effective user id), and yes (to print a string indefinitely). From Redhat 8.0 RPM