Hi all,
Is there any way I can check a file for the linefeed character at the end of the file, and append one only if it is missing (ie. Incomplete last line)?
Need to do this because I need to write a script to process files FTP-ed over from various machines, which may or may not be... (1 Reply)
Hi folks,
I am using the join command to join two files on a common field as follows:
File1.txt
Adsorption|H01.181.529.047
Adult|M01.060.116
Children|M01.055
File2.txt
5|Adsorption|C0001674
7|Adult|C000001
6|Children|C00002
join -i -t "|" -a 2 -1 1 -2 2 File1.txt File2.txt
This... (7 Replies)
I've got a strange problem with a single mail sender (it is one of
those large free mail providers). My mail server works well with
thousands of senders but not this one, so we have made a connection
dump and it seems that the three way handshake is not completed
15:55:59.177431 IP... (0 Replies)
On Solaris & AIX, suppose there is a directory 'dir'.
Log files of size approx 1MB are continuously being
deposited here by scp command. I have a script that scans
this dir every 5 mins and moves away the log files that
have been deposited so far.
How do I design my script so that I pick up... (6 Replies)
On Solaris, suppose there is a directory 'dir'.
Log files of size approx 1MB are continuously being
deposited here by scp command. I have a script that scans
this dir every 5 mins and moves away the log files that
have been deposited so far.
How do I design my script so that I pick up *only*... (6 Replies)
#!/bin/bash
DIR=/dir/$(date +%y%m)
|| mkdir "$DIR"
for D in $@ # obtem os argumentos
do
cp /usr/home/backup
if backup=null then
mkdir backup
done
How can I complete that script, that's not value, can someone help me complete this...
The point of the program is:
- If the... (1 Reply)
I need help with appending the last line to the file only if the last line is incomplete.
I tried awk 1 filename > new_filename but it appends to every file and I only want to append to the file if the last line is incomplete (3 Replies)
Hello,
Since i am new in shell scripting, i need some help from you guys. :rolleyes:
I am trying to implement an automata that reflects the attached photo..
The main idea behind is to take an array of (0 & 1)s from the user and terminate it by "end". Then, the string is send to the function... (1 Reply)
Hi all,
Please help with the following example.
I want to keep all people in the data, who at least have Firstname or Lastname or both and at least 1 row of Details. So, Person4 lacking both Firstname and Lastname will be deleted, Person5 with no Details will be deleted.
Firstname,Lastname... (3 Replies)
Discussion started by: ritakadm
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)