Hi,
I am getting different output for grep depending which directory I am in.
The following is a transcript of my session, I am using egrep but have also used grep -E. The directory names have been changed for security:
$pwd
/dir1/dir2/dir3/dir4
$echo 000000 |egrep -v
$echo $?
1
$cd ..... (10 Replies)
Hello. I have an AIX machine at 6100-00.
We had some strange activity since filling up /tmp. One symptom is that who -r displays no output. It doesn't hang just no output is displayed.
We are going to boot the machine, but prior to that I'd like to dig a bit to see what may be causing the... (0 Replies)
hey, I'm trying to create the command that will create a file named user.txt that contains the output of the command cut -d: -f1,5 /etc/passwd, and displays itself afterwards.
I don't know how to bridge cat > user.txt with cut -d: -f1,5 /etc/passwd, or how display it afterwards. Any help would... (2 Replies)
I had a similar script in solaris and it had no problem. I wrote this one in freeBSD and it gave me strange output. Can anyone please tell me why? thanks a lot
#!/bin/sh
#This is a shell script that checks file system capacity mounted on /home directory
#If file system is over 90% capacity,... (1 Reply)
hi, in solaris 10 SUN SPARC V245 server the following df -h output is showing . can i reuse the following disk space by deleting them
/platform/sun4u-us3/lib/libc_psr/libc_psr_hwcap1.so.1
20G 5.2G 14G 27% /platform/sun4u-us3/lib/libc_psr.so.1... (2 Replies)
when i use ls command it works normal but when i using additional parameter with ls like ls -l , ls -a... it shows a error followed by the output.
# ls -l
./hgfs: Operation not applicable
total 12861
-rw-r--r-- 1 root root 0 Jun 1 21:12 1
drwxr-xr-x 2 root root ... (4 Replies)
Can someone please explain why I get two outputs with the du command? The first one gave me one. I also didn't ask for the second directory so why did it give that directory?
$ du -h "/media/Part 1/Desktop/playlist"
775M /media/Part 1/Desktop/playlist
$ du -h "/media/Part... (1 Reply)
Can someone please explain this to me?
auser:x:500:500:Anne User:/home/auser:/bin/sh
buser:x:501:501:Bob User:/home/buser:/bin/bash
I'm used to it looking like this. What is the difference between the first name and second name? In the first case I had to use the first name to change my... (3 Replies)
Hi,
Kindly help me to understand the behavior or logic of the below shell command
$ echo $!#
echo $echo $
$
$ echo !$#
echo $#
0
I am using GNU bash, version 3.2.25(1)-release (2 Replies)
Hello there,
I'm using a read-while loop to preserve the word Failed within a text file. For example, if the word Failed exist twice in a single text file, my STDOUT should re-direct to a new text file and display Failed twice.
My output is attached to this thread. I would like output to... (4 Replies)
Discussion started by: SysAdminRialto
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)