05-02-2018
Is that an empty first line in your input? (see how IMPORTANT correct tagging is?)
5 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
can anyone explain me what is the difference between echo and print in shell programming? (3 Replies)
Discussion started by: chandhar
3 Replies
2. UNIX for Dummies Questions & Answers
First of all i really thankful to all those people who have created this site.
unix.com rocks man!!
I am bit confused about the two commands which are 'top' and 'ps -ef'.:confused:
My requirement is that i want to monitor the CPU usage of Operating system and if the CPU usage is more than 90%... (2 Replies)
Discussion started by: Amey Joshi
2 Replies
3. Shell Programming and Scripting
What is the difference between test expr VS .
For example :
if test 5 -eq 6
echo "Wrong"
and
if
echo "Wrong"
bot will give the same output as Wrong.
Now, what is the difference between these two? though they are producing the same result why we need two?
Any answer will be... (2 Replies)
Discussion started by: ashok.g
2 Replies
4. Shell Programming and Scripting
In C that was easy with a for and if. Iam trying to learn a litle more in bash.
Example
Ronaldo:5800
Figo:4000
Rafael:2321
Kaka:1230
I want the max of the $2 and the output will be:
The max value is 5800 from Ronaldo.
How can i do this in shell?
Thanks for all, folks. (11 Replies)
Discussion started by: rafazz
11 Replies
5. Shell Programming and Scripting
Hi,
I need subtract two date values (which are in day of the year format) and the output would give the remaining days. using the command date +"%j" i would get today's 'day of the year' i.e.,
> date +"%j"
256
Next, i need to take input of a previous date in the format 09/05/2012 and then... (4 Replies)
Discussion started by: sam_bd
4 Replies
LEARN ABOUT OPENSOLARIS
let
let(1) User Commands let(1)
NAME
let - shell built-in function to evaluate one or more arithmetic expressions
SYNOPSIS
ksh
let arg...
ksh93
let [expr...]
DESCRIPTION
ksh
Each arg is a separate arithmetic expression to be evaluated.
ksh93
let evaluates each expr in the current shell environment as an arithmetic expression using ANSI C syntax. Variables names are shell vari-
ables and they are recursively evaluated as arithmetic expressions to get numerical values. let has been made obsolete by the ((...)) syn-
tax of ksh93(1) which does not require quoting of the operators to pass them as command arguments.
EXIT STATUS
ksh
ksh returns the following exit values:
0 The value of the last expression is non-zero.
1 The value of the last expression is zero.
ksh93
ksh93 returns the following exit values:
0 The last expr evaluates to a non-zero value.
>0 The last expr evaluates to 0 or an error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
ksh(1), ksh93(1), set(1), typeset(1), attributes(5)
SunOS 5.11 2 Nov 2007 let(1)