WinXs v4.2 for Windows is a shareware program that provides UNIX-like tool functionality under Windows 95/98/ME, Windows NT4, Windows 2000 and Windows XP. To run WinXs v4.2, you will need a 486-based PC (or later), at least 8mb of main memory and approximately 5.4mb of disk space to install the software.Features of this version of WinXs include: -Cat for Windows. Concatenates one or more files and appends them to a named output file, which is created if it does not already exist. -Cksum for Windows. Calculates a cyclic redundacy check (CRC) for each input file, which it writes along with the size of the file (in bytes) to its output. -Col for Windows. Filters reverse line-feeds and various other control characters. Optionally, this filter can also be used to remove Backspace sequences or to convert spaces to tabs. -Comm for Windows. Reads file1 and file2, which should be sorted alphabetically, and produces three columns of output; lines only in file1, lines only in file2, and lines common to both files. -Compress and Uncompress. Windows version of the UNIX compress(1) and uncompress(1) commands, which are useful when downloading files from the Internet or when transferring large files to and from UNIX systems. -Csplit. Splits a text file based on context. Sections of a named input file can be written to different output files or skipped based on an argument list, which consists of a series of regular expressions and line numbers that indicate the end of each input section. Any lines left in the input file after all arguments have been matched are written out as a single section to the last output file.