.TH numbered 1 . . .SH NAME . numbered - add line numbering to the given input. . . .SH SYNOPSYS . \fBnumbered\fR . . .SH DESCRIPTION . .PP \fBnumbered\fR adds line numbering to the text content of the given input. . .PP \fBnumbered\fR reads from \fISTDIN\fR and writes to \fISTDOUT\fR. . . .SH OPTIONS . . None. . .SH EXAMPLES . .PP Add line numbering to a single file: . .RS .nf $ numbered < Makefile .fi .RE . . .PP Add line numbering to multiple files: . .RS .nf $ cat f1.txt f2.txt | numbered .fi .RE . . .SH SEE ALSO . \fBcat(1), \fBawk\fR(1)