Greppes: GREP's that Edit with Many Options. Two Programming or Admin tools for Investigation and Change of any files on ANY PC's that use MS-DOS 3.0+. Oriented towards English byte characters but can be adapted for other languages to include UNICODE double byte words. PDGREPPE: Pattern Definition GREP with Pattern Editing FGREPPE: Fast or Fixed GREP with Pattern Editing. Each uses Command Line Interface and can be customised for International Text bytes, data logging, default directories, environment and extended command line files. Both can edit by interactive or automatic modes with full respect for file-sharing properties. They accept DOS 8.3 or IFS Long File Names. Options are available by menus of FILE, VIEW, SEARCH, REPLACE, MISC and HELP. PDGREPPE has other menus for DEFINITIONS. PDGREPPE searches by Extended Regular Expressions similar to EGREP on UNIX systems. FGREPPE is more simple like FGREP on UNIX systems and does a search and replace based on FIXED patterns. NLX can change text files ordinarily used for UNIX or Apple MAC into MS-DOS usable ones. STRINGS rips sequences of text characters out of binary files so You can see their innards. HEAD gives You more! Of the front, middle or end of files. ALL feature screen paging, line wrap, high light of match areas, recursive descent into file system, multiple drive specification and MANY other options as detailed in on-line documentation file README.EXE and WWW on-line reference guide.