09-15-2014
Change the echo to print...
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1. Shell Programming and Scripting
I need the line printed with echo to append to eof of to exactly line, am i able to do that?
i mean
echo "sysctl -w lalala=1" > to end of file /etc/sysctl.conf
or to the 21st line, if the line exist, open new line and insert text there.
Thx.maybe i'm in wrong topic but anyway... (2 Replies)
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2. UNIX for Dummies Questions & Answers
without using ls, just using echo so purely pattern matching
I can say echo */ <-- lists directories
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3. Shell Programming and Scripting
Hello All,
I'm very new to scripting and I'm writing a very simple script to restart a couple processes because I'm getting to lazy to cd between directories.
This is pretty much my first script and I just want to add a little cosmetics to it.
Here's what I have:
#!/bin/ksh
echo... (5 Replies)
Discussion started by: Setan
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4. Shell Programming and Scripting
Hallo,
I need to test a String (a special ip number-string).
So I want to run that:
ipadress=172.0.0.0
# for debugging:
echo $ipadress | egrep -e '172\.?\.??\.??$'
# the test that doesnt work
if test -z `echo $ipadress | egrep -e '172\.?\.??\.??$'` != ""
then
echo "match"
else... (1 Reply)
Discussion started by: wiseguy
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5. Shell Programming and Scripting
I have entry in the my .profile like below, but still i see $PWD is not defied in my system
export PS1=$LOGNAME@`hostname`':'$PWD'>'
echo $PWD also gives me nothing, my env list also give no entry for PWD.Can someone help me setting PWD variable.
I use /bin/sh (9 Replies)
Discussion started by: yesmani
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6. Shell Programming and Scripting
#!/bin/sh
something(){
echo "Inside something"
echo $1 $2
}
val=$(something "Hello " "world")
Output expected:
Inside somethingHello world
But it's not echoing. (4 Replies)
Discussion started by: cola
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Hi:
how come this command does not work? the error message is:
xargs: cd: No such file or directory
yet, in the same time, 'echo dir_path | xargs ls' works.
Does it work in bash? We use csh.
Thanks.
NB Phil (7 Replies)
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Hi,
When I run:
echo "\033I see hi in color, but if I run this color is not shown, why?
(echo "\033Thanks
Israel.
---------- Post updated at 05:17 AM ---------- Previous update was at 04:43 AM ----------
DONE!!
I had to run more -v.
Thanks (4 Replies)
Discussion started by: iga3725
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9. Shell Programming and Scripting
Hi,when I run my first shell script,I got something that doesn't work right.
I wrote this code in the script.
echo -e "Hello,World\a\n"But the screen print like this:
-e Hello,World
The "-e" wasn't supposed to be printed out.
Can anyone help me out?:wall:
Many thanks!:) (25 Replies)
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10. Shell Programming and Scripting
Hello,
I have to add a new line at the end of a File on Solaris-System:
I think my script should be right, because I evaluated it to other threads. However the script does not what I am expected it should do.
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Line1
Line2
Line3
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Discussion started by: Timo_HR
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ECHO(3) 1 ECHO(3)
echo - Output one or more strings
SYNOPSIS
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)