Changed it slightly to separate the items in the line.
Code:
while read line
do
for H in $(echo $line | tr -d '"' | tr ' ' '\n')
do
echo $H
ping -c 1 $H
echo
done
done < $1
The above should work for list files of any name or size with one item per line,
or many items per line (space seperated, quoted or unquoted).
Quote:
This is confusing?
Actually the lists will be in a different file altogether and I'll just source that file to make it even less likely the script will need to be opened.
Last edited by ongoto; 12-06-2014 at 10:43 PM..
Reason: rewrite -- first example broke
Hi,
I'm using bash and ksh93 compatible derivatives.
In a recent getopts experience, I found myself spending far too much
time on this little problem. I hope someone can help...
So here's the deal.
I want to build have a command line interface that accepts either zero,
one, or... (4 Replies)
Hi
I executed the code
for file in `ls pdb*.ent`
do
new_name=`echo $file | sed 's/^pdb//;s/.ent/.txt/'`
mv $file $new_name
done
Its giving error at ' ls pdb*.ent' argument list too long
i have around 150000 entries
please help
Thank you (6 Replies)
I have a wrote a script which consits of the below line.. Below of this script I'm getting this error "ksh: /usr/bin/ls: arg list too long"
The line is
log_file_time=`ssh -i $HOME/.ssh/id_rsa -q $i ls -lrt /bp/karthik/test/data/log/$abc*|tail -1|awk '{print $8}'`
And $abc alias is as "p |... (1 Reply)
Hi,
Using ps, I can't work out what is the right options to use to show full listing of the process or command, can someone please advise what options I should be using?
Example output of a "trimmed" process is as below and I know this is not the complete command line that I've executed,... (8 Replies)
I have a huge set of files (with extension .common) in my directory around 2 million. When I run this script on my Linux with BASH, I get /bin/awk: Argument list too long
awk -F'\t' '
NR == FNR { a=NR }
NR != FNR {
sub(".common", "", FILENAME)
print a, FILENAME, $1
}
'... (1 Reply)
Dear Experts,
I have a list of 10K files in a directory. I am not able to execute any commands lile ls -lrt, awk, sed, mv, etc........
I wanna execute below command and get the output. How can I achieve it?? Pls help.
root# awk -F'|' '$1 == 1' file_20120710* | wc -l
/bin/awk: Argument list... (2 Replies)
Hi I am using find command --
find "directory1" -type f | xargs -i mv {} "directory2"
to avoid above argument list too long problem.
But, issue i am facing is directory1 is having subdirectories due to this i am facing directory traversal problem as i dont want to traverse subdirectories... (9 Replies)
Hi all,
I am using GNU sed (named gsed under macports) in OSX. I have a directory with a series of files named pool_01.jpg through pool_78802.jpg. I am trying to use this command to rename the files to their checksum + extension.
md5sum * | gsed -e 's/\(*\) \(.*\(\..*\)\)$/mv -v \2 \1\3/e'
... (3 Replies)
Hello,
I want to execute remote command with ssh.
For exemple, i have a variable
SERVERS=lpar1,lpar2,lpar3
I want to execute some commands like:
ssh -q lpar1 ls /
ssh -q lpar2 ls /
ssh -q lpar3 ls /
Can you help me with awk command ?
Thank you :) (6 Replies)
Hi Team,
Here's the situation.
I have approximately 300000 to 500000 jpg files in /appl/abcd/work_dir
mv /appl/abcd/work_dir /appl/abcd/process_dir
The above move command will work if the jpg files count is close to 50000 (not sure). If the count is less this mv command holds good. But if... (14 Replies)
Discussion started by: kmanivan82
14 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)