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Top Forums Shell Programming and Scripting How to insert the 1st arg into the middle of the file Post 302113974 by boris on Wednesday 11th of April 2007 06:05:01 PM
Old 04-11-2007
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I wrote a script like
#!/bin/bash
echo $1 > temp
cat $2 >> temp
mv temp $2

now I have problem appending the above script(only using bash shell) so that it now inserts the first argument into the middle of the file.

I have tried using $(('wc -l < file' / 2 ))
but invain so could any one help.
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Last edited by boris; 04-13-2007 at 03:43 PM..
 

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TMPFILE(3)								 1								TMPFILE(3)

tmpfile - Creates a temporary file

SYNOPSIS
resource tmpfile (void ) DESCRIPTION
Creates a temporary file with a unique name in read-write (w+) mode and returns a file handle . The file is automatically removed when closed (for example, by calling fclose(3), or when there are no remaining references to the file handle returned by tmpfile(3)), or when the script ends. For details, consult your system documentation on the tmpfile(3) function, as well as the stdio.h header file. RETURN VALUES
Returns a file handle, similar to the one returned by fopen(3), for the new file or FALSE on failure. EXAMPLES
Example #1 tmpfile(3) example <?php $temp = tmpfile(); fwrite($temp, "writing to tempfile"); fseek($temp, 0); echo fread($temp, 1024); fclose($temp); // this removes the file ?> The above example will output: writing to tempfile SEE ALSO
tempnam(3), sys_get_temp_dir(3). PHP Documentation Group TMPFILE(3)
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