Hi Team ,
I wrote a shell script for adding and subtracting two numbers am getting error could some one please help to fix it
script:
error am getting is:
Last edited by Don Cragun; 02-01-2018 at 01:16 AM..
Reason: Add CODE tags.
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1. The problem statement, all variables and given/known data:
1) Write a Menu Driven Shell Script which accepts1 to 5 options and performs the following actions for... (1 Reply)
How do I assign values to reference variables?
I am assigning a variable name to --> $user_var
Then I am trying to change its underlying variable value by
$((user_var))=$user_value .. its failing,,
Please let me know if there is a way to do this dynamically..
FileA.props... (5 Replies)
Hi Guys..
am new to unix scrpiting..I need a Menu need to create using shell scrpting
eg:
Food items
ready
paid
if i press "f" need to add items for a file food items..
if i press "r" it need to move into ready and remove from food items
if i press "p" need to update a filed in... (1 Reply)
QUESTION:
Write shell script using menu-driven approach to show various system configuration like
1) Currently logged user and his logname
2) Your current shell
3) Your home directory
4) Your current path setting
5) Your current working directory
6) Show Currently logged number of... (1 Reply)
i'm confused what this means.
i was asked to design a menu or command line option driven script that reads out of a DB and displays info such as
read_data.pl -u <user> -e <event>
which would print commands run by <user>with the <event> in the db.
any suggestions? i've been using... (2 Replies)
Hi, I was wondering if someone could help me write a shell script in Linux that backsup/restores data to anywhere I choose but it needs to be menu driven?
Thanks, I'm new to Linux/Unix but liking it so far...just hoping to get to grips with the scripts! :) (7 Replies)
I'm a beginner at scripting and have been putting this script together over the past week. It's no where as polish as it could be. Any tips/suggestions on improving this script would be appreciate it. Every week, my team develops WAR files in tomcat on our test environment and moves them to our... (4 Replies)
My employers would like me to selectively run one of several different (already-existing) Korn Shell menu-driven scripts out of the user's .profile file, depending on some yet-to-be-specified user critieria.
I've never done this kind of thing, but I have the existing scripts (among other... (5 Replies)
HI All..
below is my menu options script. in option 2,3 and 4 im giving input and they are saving into their respective text file.
problem is when im trying to "cat" those files in options 7,8 and 9 im not getting the output. no respective file contents are displaying on screen. but if i... (1 Reply)
Hi All,
I have written a menu driven bash shell script.
Current Output is as below:
-------------------------------------
Main Menu
-------------------------------------
Option 1
Option 2
Option 3
Option 4
Exit
=====================================
Enter your... (3 Replies)
Discussion started by: kiran_j
3 Replies
LEARN ABOUT PHP
echo
ECHO(3) 1 ECHO(3)echo - Output one or more stringsSYNOPSIS
void echo (string $arg1, [string $...])
DESCRIPTION
Outputs all parameters.
echo is not actually a function (it is a language construct), so you are not required to use parentheses with it. echo (unlike some other
language constructs) does not behave like a function, so it cannot always be used in the context of a function. Additionally, if you want
to pass more than one parameter to echo, the parameters must not be enclosed within parentheses.
echo also has a shortcut syntax, where you can immediately follow the opening tag with an equals sign. Prior to PHP 5.4.0, this short syn-
tax only works with the short_open_tag configuration setting enabled.
I have <?=$foo?> foo.
PARAMETERS
o $arg1
- The parameter to output.
o $...
-
RETURN VALUES
No value is returned.
EXAMPLES
Example #1
echo examples
<?php
echo "Hello World";
echo "This spans
multiple lines. The newlines will be
output as well";
echo "This spans
multiple lines. The newlines will be
output as well.";
echo "Escaping characters is done "Like this".";
// You can use variables inside of an echo statement
$foo = "foobar";
$bar = "barbaz";
echo "foo is $foo"; // foo is foobar
// You can also use arrays
$baz = array("value" => "foo");
echo "this is {$baz['value']} !"; // this is foo !
// Using single quotes will print the variable name, not the value
echo 'foo is $foo'; // foo is $foo
// If you are not using any other characters, you can just echo variables
echo $foo; // foobar
echo $foo,$bar; // foobarbarbaz
// Some people prefer passing multiple parameters to echo over concatenation.
echo 'This ', 'string ', 'was ', 'made ', 'with multiple parameters.', chr(10);
echo 'This ' . 'string ' . 'was ' . 'made ' . 'with concatenation.' . "
";
echo <<<END
This uses the "here document" syntax to output
multiple lines with $variable interpolation. Note
that the here document terminator must appear on a
line with just a semicolon. no extra whitespace!
END;
// Because echo does not behave like a function, the following code is invalid.
($some_var) ? echo 'true' : echo 'false';
// However, the following examples will work:
($some_var) ? print 'true' : print 'false'; // print is also a construct, but
// it behaves like a function, so
// it may be used in this context.
echo $some_var ? 'true': 'false'; // changing the statement around
?>
NOTES
Note
Because this is a language construct and not a function, it cannot be called using variable functions.
SEE ALSO print(3), printf(3), flush(3), Heredoc syntax.
PHP Documentation Group ECHO(3)