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Top Forums Shell Programming and Scripting How can i delete a keyword containing XYZ in unix Post 302352298 by Shazin on Friday 11th of September 2009 02:55:13 AM
Old 09-11-2009
Hi,

You can use the below code:

Code:
grep xyz filename > temp_filename
if [ $? -eq 0 ] ; then
echo "Pattern exist in filename"
sed "/$value/d" filename > temp_filename
mv temp_filename filename
echo "Pattern deleted"
else
echo "Pattern does not exist in filename"
fi

Cheers,
Shazin
 

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EIO_MKNOD(3)								 1							      EIO_MKNOD(3)

eio_mknod - Create a special or ordinary file.

SYNOPSIS
resource eio_mknod (string $path, int $mode, int $dev, [int $pri = EIO_PRI_DEFAULT], [callable $callback = NULL], [mixed $data = NULL]) DESCRIPTION
eio_mknod(3) creates ordinary or special(often) file. Warning This function is currently not documented; only its argument list is available. PARAMETERS
o $path - Path for the new node(file). o $mode - Specifies both the permissions to use and the type of node to be created. It should be a combination (using bitwise OR) of one of the file types listed below and the permissions for the new node(e.g. 0640). Possible file types are: EIO_S_IFREG(regular file), EIO_S_IFCHR(character file), EIO_S_IFBLK(block special file), EIO_S_IFIFO(FIFO - named pipe) and EIO_S_IFSOCK(UNIX domain socket). To specify permissions EIO_S_I* constants could be used. o $dev - If the file type is EIO_S_IFCHR or EIO_S_IFBLK then dev specifies the major and minor numbers of the newly created device spe- cial file. Otherwise $dev ignored. See mknod(2) man page for details. o $pri -The request priority: EIO_PRI_DEFAULT, EIO_PRI_MIN, EIO_PRI_MAX, or NULL. If NULL passed, $pri internally is set to EIO_PRI_DEFAULT. o $callback -$callback function is called when the request is done. It should match the following prototype: void callback(mixed $data, int $result[, resource $req]); o $data -is custom data passed to the request. o $result -request-specific result value; basically, the value returned by corresponding system call. o $req -is optional request resource which can be used with functions like eio_get_last_error(3) o $data - Arbitrary variable passed to $callback. RETURN VALUES
eio_mknod(3) returns request resource on success or FALSE on error. EXAMPLES
Example #1 eio_mknod(3) example <?php // FIFO name $temp_filename = "/tmp/eio-temp-fifo"; /* Is called when eio_mknod() finishes */ function my_mknod_callback($data, $result) { $s = stat($data); var_dump($s); if ($result == 0) { echo "eio_mknod_ok"; } @unlink($data); } eio_mknod($temp_filename, EIO_S_IFIFO, 0, EIO_PRI_DEFAULT, "my_mknod_callback", $temp_filename); eio_event_loop(); ?> The above example will output something similar to: array(26) { [0]=> int(17) [1]=> int(2337608) [2]=> int(4096) [3]=> int(1) [4]=> int(1000) [5]=> int(100) [6]=> int(0) [7]=> int(0) [8]=> int(1318241261) [9]=> int(1318241261) [10]=> int(1318241261) [11]=> int(4096) [12]=> int(0) ["dev"]=> int(17) ["ino"]=> int(2337608) ["mode"]=> int(4096) ["nlink"]=> int(1) ["uid"]=> int(1000) ["gid"]=> int(100) ["rdev"]=> int(0) ["size"]=> int(0) ["atime"]=> int(1318241261) ["mtime"]=> int(1318241261) ["ctime"]=> int(1318241261) ["blksize"]=> int(4096) ["blocks"]=> int(0) } eio_mknod_ok SEE ALSO eio_open. PHP Documentation Group EIO_MKNOD(3)
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