Hi all,
In the process of creating CPU reports.
I've already used `sar` to create a daily file, then monthly reports for CPU usage (which is averaged across all 4 CPU's).
I've now used `cpusar -P ?`(?=CPU#) to collect individual CPU data and have four files for each day which is great.
The... (4 Replies)
I have a script which removes files (if they exist)
Here is a cut down example of the script.
Variables file1,file2 etc have already been initialized
#!/bin/bash
if
then
\rm file1
fi
if
then
\rm file2
fi
if
then
\rm file3
fi
if
then
\rm file4 (9 Replies)
Hi All,
I am currently using the following script to send the single file to one/more email addresses. I need to send mutilple files at same time, are there anyway I could modify the script or write new one to accomplish the same.
Script
***************
#!/bin/ksh
# Author: Manish... (4 Replies)
I need to clean out some application subdirectories from backup scripts we used to rename to various backup extensions just in case the script failed in production and we need to rollback. I will be moving these old scripts to a staging directory and then removing them after 30 days (I have the... (9 Replies)
Hi,
I just started to learn shell progamming and just can't get my head around the following problem.
I need to do the following:
I have a folder which contains 100+ subfolders. Inside these subfolders there is one folder named 'Morph' and several jpg's.
I need to copy all the files into... (4 Replies)
How to remove the first line from multiple files and use it as source to the jobs. Only at the runtime it should remove the first line not in the file . (1 Reply)
I would like to get help to find how to replace word in files from command line instead of to vi to each file.
This is the command i am running now.
grep <old word> *
vi (file with the word found in it)
1,$s/<old word>/<new word>/g
It would very helpful if I can combine these in one... (2 Replies)
file1.txt
file2.txt
file3.txt
desired output is
each file is in the same directory, hasthe same number of columns but different rows. i want to be able to paste them into one file.
thanks! (5 Replies)
This is on a RHEL 6 box with bash 4.1.2
I'm trying to to use grep to only find those lines containing matches that form whole words.
The -w option works fantastic unless of course that word has a hyphen.
The problem is I will get a hit on "test-group" which is a good thing, but I will also... (3 Replies)
Split large xml into mutiple files and with header and footer in file
tried below
it splits unevenly and also i need help in adding header and footer
command :
csplit -s -k -f my_XML_split.xml extrfile.xml "/<Document>/" {1}
sample xml
<?xml version="1.0" encoding="UTF-8"?><Recipient>... (36 Replies)
Discussion started by: karthik
36 Replies
LEARN ABOUT PHP
fwrite
FWRITE(3) 1 FWRITE(3)fwrite - Binary-safe file writeSYNOPSIS
int fwrite (resource $handle, string $string, [int $length])
DESCRIPTION fwrite(3) writes the contents of $string to the file stream pointed to by $handle.
PARAMETERS
o $handle
-A file system pointer resource that is typically created using fopen(3).
o $string
- The string that is to be written.
o $length
- If the $length argument is given, writing will stop after $length bytes have been written or the end of $string is reached,
whichever comes first. Note that if the $length argument is given, then the magic_quotes_runtime configuration option will be
ignored and no slashes will be stripped from $string.
RETURN VALUES fwrite(3) returns the number of bytes written, or FALSE on error.
NOTES
Note
Writing to a network stream may end before the whole string is written. Return value of fwrite(3) may be checked:
<?php
function fwrite_stream($fp, $string) {
for ($written = 0; $written < strlen($string); $written += $fwrite) {
$fwrite = fwrite($fp, substr($string, $written));
if ($fwrite === false) {
return $written;
}
}
return $written;
}
?>
Note
On systems which differentiate between binary and text files (i.e. Windows) the file must be opened with 'b' included in fopen(3)
mode parameter.
Note
If $handle was fopen(3)ed in append mode, fwrite(3)s are atomic (unless the size of $string exceeds the filesystem's block size, on
some platforms, and as long as the file is on a local filesystem). That is, there is no need to flock(3) a resource before calling
fwrite(3); all of the data will be written without interruption.
Note
If writing twice to the file pointer, then the data will be appended to the end of the file content:
<?php
$fp = fopen('data.txt', 'w');
fwrite($fp, '1');
fwrite($fp, '23');
fclose($fp);
// the content of 'data.txt' is now 123 and not 23!
?>
EXAMPLES
Example #1
A simple fwrite(3) example
<?php
$filename = 'test.txt';
$somecontent = "Add this to the file
";
// Let's make sure the file exists and is writable first.
if (is_writable($filename)) {
// In our example we're opening $filename in append mode.
// The file pointer is at the bottom of the file hence
// that's where $somecontent will go when we fwrite() it.
if (!$handle = fopen($filename, 'a')) {
echo "Cannot open file ($filename)";
exit;
}
// Write $somecontent to our opened file.
if (fwrite($handle, $somecontent) === FALSE) {
echo "Cannot write to file ($filename)";
exit;
}
echo "Success, wrote ($somecontent) to file ($filename)";
fclose($handle);
} else {
echo "The file $filename is not writable";
}
?>
SEE ALSO fread(3), fopen(3), fsockopen(3), popen(3), file_get_contents(3).
PHP Documentation Group FWRITE(3)