Greetings,
I am wrapping the monitoring commands like vmstat, sar, iostat and call via arguments
I want ./unix_stats.sh -v vmstat -p <SEC> -d <Duration>
to give vmstat values, and similarly iostat etc.,.
Also if I give ./unix_stats.sh -v vmstat -i iostat -p <SEC> -d <Duration> should give... (4 Replies)
Hi All,
Calling a function with one argument and storing the return value in a shell script is as below:( so far I know)
value="`fun_1 "argument1"`"
Its working perfectly for me.
Can u help me with passing more than one argument and storing the return value
Thnaks in advance
JS (1 Reply)
Hi All,
i have script like below..
echo "1) first option"
echo ""
echo "2) second option"
echo ""
echo "*) please enter the correct option"
read select
case $select in
1) echo "first option selected"
;;
2) echo "second option selected"
;;
*) echo "please enter the correct... (4 Replies)
I have some folders with this structure:
/data/me/a123xxx
Where "xxx" is some changing series of letters, and "123" changes so folders might look like: /data/me/a123xxx
/data/me/a234ysd
/data/me/a534sds etc. The numbers are what matter to me (they identify the folder), so I created an... (7 Replies)
Hi all
I have got a file digits.data containing the following data
1 3 4
2 4 9
7 3 1
7 3 10
I am writing a script that will pass an argument from C-shell to nawk command. But it seems the values in the nawk comman does not get set. the program does not print no values out. Here is the... (2 Replies)
Hi all
First of all thanks for everyone to read by doubt.Am beginner in shell scripting
Following are my doubts
i have to pass an argument to shellscript how can i do that
second i have to test the argument and shows error when nothing is passes
third i have to match exact argument... (3 Replies)
Hello all,
New to C and I'm trying to write a program which can run a unix command. Would like to have the option of giving the user the ability to enter arguments e.g for "ls" be able to run "ls -l".
I would appreciate any help.
Thanks
#include <stdio.h>
#include <unistd.h>
#include... (3 Replies)
Hi,
I have a script that is scheduled with cron and runs every night. The cron part looks like this:
00 20 * * 0,1,2,3,4,5,6 /usr/local/bin/BACKUP TBTARM HOT DELETE
My issue is with the 3rd parameter. Somewhere in the script, i want to tell the script to delete some files if the 3rd... (7 Replies)
I am trying to pass a second argument like so:
if ] then
export ARG2=$2
else
message "Second argument not specified: USAGE - $PROGRAM_NAME ARG1 ARG2"
checkerror -e 2 -m "Please specify if it is a history or weekly (H or W) extract in the 2nd argument"
fi
however, it always goes... (4 Replies)
Discussion started by: MIA651
4 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)