Hi All,
I didn't find any thread that match this question so I hope it's not redundant. I am totally new to Unix. I want to know what is the maximum length of the os-commandline in Unix. Will it cause any problem if I run any application whose total path length is much longer than 256... (2 Replies)
hi,
I am using solaris10. I have to write a bourne shell script, which copies files for the said destination path which is passed as an argument to the script.
it looks like this
myscript.sh /var/test -->destination path
now i would like to know what is the maximum length i can... (3 Replies)
Hi,
I need to create a file of record length more than 300 characters.
But in my unix box, i am able to create a file only with a maximum of 256 characters per record.
Is there anyway i can create a file with more than 300 characters in this case?
Or How to increase the maximum record... (1 Reply)
Hi,
I wanted to know what is the maximum length of command which can be run on a bourne (sh) shell? Where can I find that information? Is it different for different OS flavors?
Please help.
Thanks,
Vineet (10 Replies)
Is there a maximum length for a shell script command? How can I detect that in my OS?
For example, if I have something like:
command A | command B | command C | awk '{print $1 $2 $3 $4 $5}'
then can we break the commands and also the arguments inside awk ?
Thanks (11 Replies)
How can I change the maximum length of a programming line in fortran and C (specifically in fortran 77)?
Seems the default maximum length is 72 in fortran 77.
Thanks. (4 Replies)
Discussion started by: hbar
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)