Interesting TCL behavior: 007 == 7 is true; 008==8 is false. Post: 302254250

Sponsored Content

Top Forums Shell Programming and Scripting Interesting TCL behavior: 007 == 7 is true; 008==8 is false. Post 302254250 by sarwan on Tuesday 4th of November 2008 01:59:25 AM

11-04-2008

Registered User

Interesting TCL behavior: 007 == 7 is true; 008==8 is false.

Hi all,
If anyone has the explanation for the following issue, please share it with me.

I am comparing two variable a and b with the values of 007 and 7, for these values it get evaluated as True. For a=008 and b=8, for these values it get evaluated as false.

#!/bin/tclsh
set a 007
set b 7
if { $a == $b } {
puts "$a equals to $b"
} else {
puts "$a not equals to $b"
}
set a 008
set b 8
if { $a == $b } {
puts "$a equals to $b"
} else {
puts "$a not equals to $b"
}

Output:
007 equals to 7
008 not equals to 8

In Fact a = (001,002,...007) and b= (1,2,...7) it get evaluated as True and becomes false for a > 007 and b > 7.

Thanks
Sarwan

sarwan

View Public Profile for sarwan

Find all posts by sarwan

4 More Discussions You Might Find Interesting

1. AIX

Interesting SMITTY behavior

I have a couple systems that are acting strangely. In 'smitty tcpip' everything is displayed twice. Even going into the submenus (like minimum configuration and startup) everything is displayed twice. Has anyone seen this? Know how to fix it? Thanks

2. Solaris

True or false ? - Sun cluster 3.2 U3 questions...

I'm using clustered zones on my machine. i'm only at the test phase of my design and ultimately the oracle zones will be using VxVM. When the testing phase is complete, VxVM will be used in the containers. It is necessary for VxVM to run in the global zone for the containers to use it (is...

3. Shell Programming and Scripting

Bash shell script: Str(007) to int(7),increment it(8) & convert back to string(008)

Hi, I have the following requirement. There will be following text/line in a file (eg: search-build.txt) PRODUCT_VERSION="V:01.002.007.Build1234" I need to update the incremental build number (eg here 007) every time I give a build through script. I am able to search the string and get...

4. UNIX for Dummies Questions & Answers

Output checker setting variable to TRUE or FALSE

Hi All, I'm trying to come up a way to check the output of some data i have. I need to be able to check for the order of the output and if its correct set a variable to false if it isnt. Currently the data is in the below format, this is the value which should cause the variable be set...

LEARN ABOUT OPENSOLARIS

iapx286

machid(1)							   User Commands							 machid(1)

NAME

       machid, sun, iAPX286, i286, i386, i486, i860, pdp11, sparc, u3b, u3b2, u3b5, u3b15, vax, u370 - get processor type truth value

SYNOPSIS

       sun

       iAPX286

       i386

       pdp11

       sparc

       u3b

       u3b2

       u3b5

       u3b15

       vax

       u370

DESCRIPTION

       The following commands will return a true value (exit code of 0) if you are using an instruction set that the command name indicates.

       sun	  True if you are on a Sun system.

       iAPX286	  True if you are on a computer using an iAPX286 processor.

       i386	  True if you are on a computer using an iAPX386 processor.

       pdp11	   True if you are on a PDP-11/45tm or PDP-11/70tm.

       sparc	  True if you are on a computer using a SPARC-family processor.

       u3b	  True if you are on a 3B20 computer.

       u3b2	  True if you are on a 3B2 computer.

       u3b5	  True if you are on a 3B5 computer.

       u3b15	  True if you are on a 3B15 computer.

       vax	  True if you are on a VAX-11/750tm or VAX-11/780tm.

       u370	  True if you are on an IBM(R) System/370tm computer.

       The  commands  that  do	not  apply will return a false (non-zero) value. These commands are often used within makefiles (see make(1S)) and
       shell scripts (see sh(1)) to increase portability.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       make(1S), sh(1), test(1), true(1), uname(1), attributes(5)

NOTES

       The machid family of commands is obsolete. Use uname -p and uname -m instead.

SunOS 5.11							    5 Jul 1990								 machid(1)