Hi,
My requirement was to check the existence of a file having a specified pattern.The way i tried to achieve this was
if ; then
echo "File found"
fi
an example file having this pattern was 'ilvs_trace01.0124'.
it will vary... (3 Replies)
Hi,
I am trying to check for the existence of a file using the 'test' and the file existence options.
When trying to check for a file with a space in between e.g 'Team List', it gives the following error.
learn1: line 3: test: `Team: binary operator expected
I am pasting my code below as... (7 Replies)
I want to check the files in particular directory are more that 0 Bytes i.e, Non zero byte file. The script should print a msg if all the files in that directory are empty( 0 Byte). (2 Replies)
Hi,
I am trying to check the existence of a file, from a list of possible filenames:
status-A
status-B
status-C
before retrieving the last modified datetime using ls, I want to check it exists or ls will throw an error.
So I have tried this:
if ; then
ls status-*
fi
But the if... (3 Replies)
Hi
Can any body say me the reason for below error
ssh -o 'StrictHostKeyChecking no' user@client ' && print "1"'
I am getting error as "Missing ]":wall: (6 Replies)
Hi,
I am a SAP- ABAP programer , i have only little knowledge of Unix.
My issue is i have a list of files which are in internal table.
I want to create a script which consist of all these files and in one go i can check in the unix server about there existance and there file size.
Can... (2 Replies)
Hi,
I need to check whether a particular file exists ot not using awk.
Can anyone help me please?
For Example:script that i am using:
awk '{filename =$NF;
rc=(system("test -r filename")) print $rc;}' "$1"
is not working.
Here I am passing a text file as input whose last word contains a... (6 Replies)
Hi am trying to write a script which find the existence of a file from a find command output and perform a task if the file exists. Help me out with the correct syntax . Am trying with the following one but unable to get the output.
if
then <some tasks>
else
echo "file not exists"
fi (5 Replies)
Hi,
I have written a script to validate the data file by referreing to the configurtion file. And moving the validated good records and bad records into HDFS.
Suppose after 15 mins if i receive one more data fie,then after validation the good and bad records shold be stored in hadoop with the... (8 Replies)
Discussion started by: shree11
8 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)