Like -i, but ignore only tabs and spaces. Natural sort of (version) numbers within text Unique processing to suppress all but one in each set of lines having equal keys. Uses char instead of non-blank to blank transition. Use size for the maximum size of the memory buffer. Stabilizes sort by disabling last-resort comparison. Uses OUTPUT file instead of standard output.

< 'DEC'.Ĭompares according to string numerical value. Merge only input files are assumed to be presorted.Ĭompares (unknown) < 'JAN' <. Start a key at POS1 (origin 1), end it at POS2 (default end of line) Like -c, but does not report the first bad line.Ĭonsiders only blanks and alphanumeric characters.įold lower case to upper case characters.Ĭompares according to general numerical value.Ĭompare human readable numbers (e.g., 2K 1G). With no FILE, or when FILE is -, the command reads from standard input. The sort command has also been ported to the IBM i operating system. Similar commands are available on many other operating systems, for example a sort command is part of ASCII's MSX-DOS2 Tools for MSX-DOS version 2. This implementation employs the merge sort algorithm. The version of sort bundled in GNU coreutils was written by Mike Haertel and Paul Eggert. In Version 5, Thompson invented '-' to represent standard input. By Version 4 Thompson had modified it to use pipes, but sort retained an option to name the output file because it was used to sort a file in place. This version was originally written by Ken Thompson at AT&T Bell Laboratories. For instance the ' -r' flag will reverse the sort order.Ī sort command that invokes a general sort facility was first implemented within Multics. The command supports a number of command-line options that can vary by implementation.

Blank space is the default field separator. By default, the entire input is taken as sort key. Sorting is done based on one or more sort keys extracted from each line of input. In computing, sort is a standard command line program of Unix and Unix-like operating systems, that prints the lines of its input or concatenation of all files listed in its argument list in sorted order. Multics, Unix, Unix-like, V, Plan 9, Inferno, MSX-DOS, IBM i Various open-source and commercial developers

Sort dcommand in linux