I got hit with my ksh scripts just going from RedHat 5 to RedHat 6. Yes, they changed the behavior of the builtin echo command. But they added a "-e" flag to get the old behavior. This means that a script can easily test whih echo is in operation. Just do a "echo -e" and capture the output. If you get "-e" you have the old echo. If you get no characters, you have the new echo.
If I have the old echo, I'm good. My scripts will work the way I want. But if I have the new echo, I'm in trouble. I need to arrange to add the "-e" flag to all of my echo commands. It sounds like a big deal when I explain it, but I really just add a few lines of code to each script near the top (and certainly before any echo statements)...
hi all
i m working in a company ...and i have to migrate a C application running on SCO-UNIX to Red hat linux.
can anybody tell me what is the difference between C commands and shell scripting on SCO-UNIX and LINUX.
best regards
harsh (3 Replies)
I am trying to set some environment variables in a shell script which is written in Kshell. I am invoking this script in .profile. The problem is envirnment variables are set within the script but after exiting the script those are gone. I don't have any problem with If I have Kshell as my default... (0 Replies)
Dear All,
What points should i keep in mind while migrating scripts from HP-UX to AIX.
Are there any notes available for this?
cheers,
vishal (1 Reply)
Hi All,
I am currently facing new problem of migrating C(c language) application from AIX machine to Linux machine. We are using GCC to compile the source code..
But facing with the compilation issues, with lot of GCC C libs differing between AIX box to Linux box...
Pls help me... (1 Reply)
Hi All,
I am currently facing new problem of migrating C(c language) application from AIX machine to Linux machine. We are using GCC to compile the source code..
But facing with the compilation issues, with lot of GCC C libs differing between AIX box to Linux box...
Pls help me... (1 Reply)
We are changing our OS from HP-Unix 11 to Linux Red Hat. We have few k- shell, c - shell and sql scripts which are currently running under HP-Unix 11. Will these scripts work on LINUX as it is? or we need to do any code changes?IS there anyone who have done this kind of migration before?Thanks for... (2 Replies)
We have certain number of scripts that run on AIX server using ksh.
Now that we migrate these scripts to Linux servers.
We need to know what are the changes that we have to perform in script to make it compatible to run on Linux.
Say like in our Unix -AIX "print" command worked.
But that did... (6 Replies)
I'm New to AIX / VIOS
We're doing a FC switch cutover on an ibm device, connected via SAN.
How do I tell if one path to my remote disk is lost? (aix lvm)
How do I tell when my link is down on my HBA port?
Appreciate your help, very much! (4 Replies)
Hi,
recently we have migrated our current AIX server to Linux, we have lot of shell script, few of them are FTP scripts.
we have copied the complete AIX file system to linux 7.2 as it is.
could you please highlight what are the things we need to look into it .
in AIX we are using .netrc to... (3 Replies)
Discussion started by: Riverstone
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)