See previous section on terminals . Pressing CTRL-U will erase the entire line. Kill a command by pressing CTRL-C. Changing your password Use yppasswd to change your password system wide. This will modify the password file on the strw server machine and will propagate the change to all strw cluster WorkStations. Observatory policies require at least eight characters with one or more non-alpha characters.
Many commands also accept command line options ,e.g. the -k option for man.
To see all files use ls -a . This will show hidden files. The file system is a hierarchical grouping of files into directories and subdirectories. Actually, a directory is also a file. The single dot represents the current directory.