B.1.1 SPARC: Changes Affecting SunOS 4.x Users

Some of the more obvious differences between SunOS 4.x releases and the SunOS 5.x releases are:

• Many UNIX commands have changed. For a detailed list, see Solaris 1.x to 2.x Transition Guide.

• The printing subsystem has changed. For example:

  • lp(1) replaces lpr.

  • lpstat(1) replaces lpq.

  • cancel(1) replaces lprm.

  • troff(1) requires a printer name.

• The mail programs have changed. The SunOS 4.x mailboxes and folders are completely compatible with any of the three Solaris 2.3 mail programs:

  • mailtool, the DeskSet environment Multimedia Mail Tool

  • mail(1), a command-line utility

  • mailx(1), a command-line utility

• The location or name of some system files has changed. For example:

  • /etc/vfstab replaces /etc/fstab.

  • /var/mail replaces /var/spool/mail.

  • /platform/*/kernel/unix replaces /vmunix.

For more information on the preceding topics, see Solaris 1.x to 2.x Transition Guide.