(coreutils) The uniq command

Info Catalog

(coreutils) The sort command

(coreutils) Opening the software toolbox

(coreutils) Putting the tools together

 
 The `uniq' Command
 ==================
 
 Finally (at least for now), we'll look at the `uniq' program.  When
 sorting data, you will often end up with duplicate lines, lines that
 are identical.  Usually, all you need is one instance of each line.
 This is where `uniq' comes in.  The `uniq' program reads its standard
 input.  It prints only one copy of each repeated line.  It does have
 several options.  Later on, we'll use the `-c' option, which prints
 each unique line, preceded by a count of the number of times that line
 occurred in the input.
 

Info Catalog

(coreutils) The sort command

(coreutils) Opening the software toolbox

(coreutils) Putting the tools together