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32 .\" @(#)expand.1 8.1 (Berkeley) 6/9/93
41 .Nd expand tabs to spaces, and vice versa
45 .Op Fl Ns Ar tab1,tab2,...,tabn
52 processes the named files or the standard input writing
53 the standard output with tabs changed into blanks.
54 Backspace characters are preserved into the output and decrement
55 the column count for tab calculations.
57 is useful for pre-processing character files
58 (before sorting, looking at specific columns, etc.) that
63 argument is given, then tabs are set
65 spaces apart instead of the default 8.
66 If multiple tabstops are given then the tabs are set at those
70 puts tabs back into the data from the standard input or the named
71 files and writes the result on the standard output.
78 By default, only leading blanks and tabs
79 are reconverted to maximal strings of tabs. If the
81 option is given, then tabs are inserted whenever they would compress the
82 resultant file by replacing two or more characters.