GNU and Public Domain Software
- 4.01: How do I find sources?
- 4.02: Are there any ftp or WWW sites?
- 4.03: Why does "install"ing software I got from the net fail?
- 4.04: GNU Emacs
- 4.05: gcc/gdb
- 4.06: GNU Ghostscript
- 4.07: TeX - Document processing
- 4.08: Perl - Scripting language
- 4.09: X-Windows
- 4.10: Bash - /bin/ksh alternative from FSF
- 4.11: Elm
- 4.12: Oberon 2.2
- 4.13: Kermit - Communications
- 4.14: Gnu dbm
- 4.15: tcsh - an alternative shell
- 4.16: Kyoto Common Lisp
- 4.17: Tcl/Tk - X-Windows scripting
- 4.18: Expect
- 4.19: Public domain software on CD
- 4.20: Andrew Toolkit
- 4.21: sudo
- 4.22: Flexfax/HylaFax and other fax software
- 4.23: lsof - LiSt Open Files
- 4.24: popper - POP3 mail daemon
- 4.26: mpeg link errors version 2.0
- 4.27: NNTP, INN
- 4.28: Zmodem - File transfer
- 4.29: Patch - automated file updates
- 4.30: XNTP - network time protocol, synchronizes clocks
- 4.31: GNU Screen and AIX 4.1.x
- 4.32: SCSI scanner software
- 4.33: Pager/Paging software
- 4.34: JAVA Development Kit
- 4.35: Sendmail