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UNIQ(1) USER COMMANDS UNIQ(1) NAME uniq - remove or report adjacent duplicate lines SYNOPSIS uniq [ -cdu [ +|-n ] [ inputfile [ outputfile ] ] DESCRIPTION uniq reads the input file comparing adjacent lines. In the normal case, the second and succeeding copies of repeated lines are removed; the remainder is written on the output file. Note: repeated lines must be adjacent in order to be found; see sort(1V). OPTIONS -c Supersede -u and -d and generate an output report in default style but with each line preceded by a count of the number of times it occurred. The normal output of uniq is the union of the -u and -d options. -d Write one copy of just the repeated lines. -u Copy only those lines which are not repeated in the original file. The n arguments specify skipping an initial portion of each line in the comparison: +n The first n characters are ignored. Fields are skipped before characters. -n The first n fields together with any blanks before each are ignored. A field is defined as a string of non-SPACE, non-TAB characters separated by SPACE and TAB characters from its neighbors. SEE ALSO comm(1), sort(1V) Sun Release 4.1 Last change: 9 September 1987





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