src/usr.bin/sort/sort.1 - diff

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Diff for /src/usr.bin/sort/sort.1 between version 1.5 and 1.6

version 1.5, 1999/06/05 01:21:40

version 1.6, 2000/01/05 07:40:43

Line 78

returns 0.

.Nm sort

.Fl c

produces no output.

produces no output, except the error messages on

.Em stderr .

.It Fl m

Merge only; the input files are assumed to be pre-sorted.

.It Fl o Ar output

Line 181

Line 182

is used as the field separator character. The initial

.Ar char

is not considered to be part of a field when determining

key offsets (see below).

key offsets.

Each occurrence of

.Ar char

is significant (for example,

Line 189

Line 190

delimits an empty field).

.Fl t

is not specified,

is not specified, the default field separator is a sequence of

blank space characters are used as default field

blank-space characters, and consecutive blank spaces do

separators.

.Em not

delimit an empty field; further, the initial blank space

.Em is

considered part of a field when determining key offsets.

.It Fl R Ar char

.Ar char

is used as the record separator character.

Line 228

Line 232

.El

.Pp

A field is

defined as a minimal sequence of characters followed by a

defined as a maximal sequence of characters other than the

field separator or a newline character.

field separator and record separator

By default, the first

.Pq newline by default .

blank space of a sequence of blank spaces acts as the field separator.

Initial blank spaces are included in the field unless

All blank spaces in a sequence of blank spaces are considered

.Fl b

as part of the next field; for example, all blank spaces at

has been specified;

the beginning of a line are considered to be part of the

the first blank space of a sequence of blank spaces acts as the field

first field.

separator and is included in the field (unless

.Fl t

is specified).

For example, by default all blank spaces at the beginning of a line are

considered to be part of the first field.

.Pp

Fields are specified

by the

Line 250

Line 258

.Ar field2

have the form

.Em m.n

followed by one or more of the options

.Em (m,n > 0)

.Fl b , d , f , i ,

and can be followed by one or more of the letters

.Fl n , r .

.Cm b , d , f , i ,

.Cm n ,

and

.Cm r ,

which correspond to the options discussed above.

.Ar field1

position specified by

.Em m.n

.Em (m,n > 0)

is interpreted as the

.Em n Ns th

character in the

character from the beginning of the

.Em m Ns th

field.

A missing

Line 285

Line 296

non-blank character in the

.Em m Ns th

field.

.No 1\&. Ns Em n

refers to the

.Em n Ns th

character from the beginning of the line;

.Em n

is greater than the length of the line, the field is taken to be empty.

.Pp

.Ar field2