04-15-2013
Join lines in a file????
Hello UNIX gurus, I am new to the world of UNIX. Hopefully I am submitting my question at the right forum. Here is my dilemma -
I have a file with contents like this -
"line1","Hello","World","Today is a wonderful day","yes it is"
"line2","Hello","World","Today is a
beautiful day","oh yeah"
"line3","Hello","World","Today is a great
day","right you are"
"line4","Hello","World","Today is really an awesome day","you can say that again"
you may have observed that some of the records do not appear in a single line. For example line2 and line3 have broken off and a part of them is in a different line. I am desperately looking for a way to join these broken records so that I can have them in a single line. Is there a command I can use which will read the records in a file, then correct the broken lines and then create a file with proper records? I hope this is possible. Please help.
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LEARN ABOUT PHP
stream_wrapper_register
STREAM_WRAPPER_REGISTER(3) 1 STREAM_WRAPPER_REGISTER(3)
stream_wrapper_register - Register a URL wrapper implemented as a PHP class
SYNOPSIS
bool stream_wrapper_register (string $protocol, string $classname, [int $flags])
DESCRIPTION
Allows you to implement your own protocol handlers and streams for use with all the other filesystem functions (such as fopen(3), fread(3)
etc.).
PARAMETERS
o $protocol
- The wrapper name to be registered.
o $classname
- The classname which implements the $protocol.
o $flags
- Should be set to STREAM_IS_URL if $protocol is a URL protocol. Default is 0, local stream.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
stream_wrapper_register(3) will return FALSE if the $protocol already has a handler.
CHANGELOG
+--------+------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+------------------------------+
| 5.2.4 | |
| | |
| | Added the $flags parameter. |
| | |
+--------+------------------------------+
EXAMPLES
Example #1
How to register a stream wrapper
<?php
$existed = in_array("var", stream_get_wrappers());
if ($existed) {
stream_wrapper_unregister("var");
}
stream_wrapper_register("var", "VariableStream");
$myvar = "";
$fp = fopen("var://myvar", "r+");
fwrite($fp, "line1
");
fwrite($fp, "line2
");
fwrite($fp, "line3
");
rewind($fp);
while (!feof($fp)) {
echo fgets($fp);
}
fclose($fp);
var_dump($myvar);
if ($existed) {
stream_wrapper_restore("var");
}
?>
The above example will output:
line1
line2
line3
string(18) "line1
line2
line3
"
SEE ALSO
The "streamWrapper" prototype class, "Example class registered as stream wrapper", stream_wrapper_unregister(3), stream_wrapper_restore(3),
stream_get_wrappers(3).
PHP Documentation Group STREAM_WRAPPER_REGISTER(3)