diff options
Diffstat (limited to 'bin/expr/expr.1')
| -rw-r--r-- | bin/expr/expr.1 | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/bin/expr/expr.1 b/bin/expr/expr.1 index 40c4bf1..74cb2a9 100644 --- a/bin/expr/expr.1 +++ b/bin/expr/expr.1 @@ -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 . |
