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Correct use of .Nm.

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This commit is contained in:
Philippe Charnier 1998-05-13 07:43:56 +00:00
parent 00c2adfe12
commit 15638d89b5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=36011
1 changed files with 11 additions and 11 deletions
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22
bin/expr/expr.1
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@ -28,7 +28,7 @@
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\" $Id$
.\" $Id: expr.1,v 1.6 1997/02/22 14:03:37 peter Exp $
.\"
.Dd July 3, 1993
.Dt EXPR 1
@ -41,13 +41,13 @@
.Ar expression
.Sh DESCRIPTION
The
.Nm expr
.Nm
utility evaluates
.Ar expression
and writes the result on standard output.
.Pp
All operators are separate arguments to the
.Nm expr
.Nm
utility.
Characters special to the command interpreter must be escaped.
.Pp
@ -55,26 +55,26 @@ Operators are listed below in order of increasing precedence.
Operators with equal precedence are grouped within { } symbols.
.Bl -tag -width indent
.It Ar expr1 Li | Ar expr2
Returns the evaluation of
Return the evaluation of
.Ar expr1
if it is neither an empty string nor zero;
otherwise, returns the evaluation of
.Ar expr2 .
.It Ar expr1 Li & Ar expr2
Returns the evaluation of
Return the evaluation of
.Ar expr1
if neither expression evaluates to an empty string or zero;
otherwise, returns zero.
.It Ar expr1 Li "{=, >, >=, <, <=, !=}" Ar expr2
Returns the results of integer comparison if both arguments are integers;
Return the results of integer comparison if both arguments are integers;
otherwise, returns the results of string comparison using the locale-specific
collation sequence.
The result of each comparison is 1 if the specified relation is true,
or 0 if the relation is false.
.It Ar expr1 Li "{+, -}" Ar expr2
Returns the results of addition or subtraction of integer-valued arguments.
Return the results of addition or subtraction of integer-valued arguments.
.It Ar expr1 Li "{*, /, %}" Ar expr2
Returns the results of multiplication, integer division, or remainder of integer-valued arguments.
Return the results of multiplication, integer division, or remainder of integer-valued arguments.
.It Ar expr1 Li : Ar expr2
The
.Dq \:
@ -115,9 +115,9 @@ The following example returns the number of characters in variable a.
.El
.Sh DIAGNOSTICS
The
.Nm expr
.Nm
utility exits with one of the following values:
.Bl -tag -width Ds -compact
.Bl -tag -width indent -compact
.It 0
the expression is neither an empty string nor 0.
.It 1
@ -127,6 +127,6 @@ the expression is invalid.
.El
.Sh STANDARDS
The
.Nm expr
.Nm
utility conforms to
.St -p1003.2 .