topic Re: whilst scripting is = same as ==? in Operating System - HP-UX

whilst scripting is = same as ==?

SM_3 — Thu, 03 Jun 2004 09:50:34 GMT

Hello

I saw == in a script is it the same as =?

Thanks

Re: whilst scripting is = same as ==?

KapilRaj — Thu, 03 Jun 2004 09:54:14 GMT

== is used in awk scripts and = in shell scripts. Yes they hv the same meaning.

Kaps

Re: whilst scripting is = same as ==?

Bruno Ganino — Thu, 03 Jun 2004 09:54:28 GMT

YES
Bruno

Re: whilst scripting is = same as ==?

H.Merijn Brand (procura — Thu, 03 Jun 2004 09:55:58 GMT

in perl they don't :)

== means the TEST if the left expression is equal to the right expression
= means the ASSIGNMENT of the outcome of the expression on the right to the variable on the left

HTH. Enjoy, Have FUN! H.Merijn

Re: whilst scripting is = same as ==?

curt larson_1 — Thu, 03 Jun 2004 12:30:07 GMT

all modern programing languages use
== to test for equality and
= for variable assignment.

awk,perl,tcl,c,c++,etc all do this

hp's shell hasn't implemented many of the standard features available with modern programing languages, i.e. floating point numbers, assocative arrays, using pointers to pass values to functions, etc.

hp's shell hasn't implemented ==. with hp's shell = is used both for variable assignment and for testing equality