compressncompress安装文件ncompress-424-47i386rpm

compress命令是用来将文件压缩成.Z格式的，对应的uncompress是用来解压的。Compress reduces the size of the named files using adaptive Lempel-Ziv coding. Whenever possible, each file is replaced by one with the extension .Z, while keeping the same ownership modes, access and modification times. 这个命令使用的算法因为不够先进，在Linux下现在都采用gz