/bwrite Command - mIRC

mIRC

The /bwrite command can be used to write a specified amount of bytes from the string/buffer to a given file starting at the start_pos position.

Note: the starting position is 0, not 1.

Synopsis

/bwrite -act <filename> <start_pos> <length> <text|%var|&binvar>

Switches

-t - Treats everything as plain text (i.e. $identifiers and %variables (but not contents of %variables) are evaluated, but binary variables are not evaluated, are treated as text strings beginning with &) This switch is needed if literal string begins with & or string within %var begins with & or % characters.
-c - Chops the file at the end of the written data (if your current disk file is 10 bytes and you write 3 bytes at position 3 (4th byte), the resulting disk file's filesize is 6 because the 3 bytes were written as the 4th through 6th bytes of the file)
-a - Disables UTF-8 encoding of characters in the range 0-255, as long as the line contains no characters > 255

Parameters

<filename> - the file name to be modified
<start_pos> - the position in the file to start writing at. First byte of the file is 0. Using -1 appends data to the end of existing file.
[length] - Length of the data to be written. Using -1 writes entire length of source text or variable.
<text|%var|&binvar> - data to be written to the file

Example

;Write some text to a file at beginning of the file
/bwrite file.txt 0 hello there!
;Replace "there!" with "world!"
/bwrite file.txt 6 world!

//var %b contents of b | var %a $chr(37) $+ b | echo -a a= %a b= %b | bwrite -c test.dat 0 -1 %a | echo -a file= $read(test.dat,nt,1)
returns: test
because the contents of %a began with % causing the contents of %b to be written. Using -tc instead of -c would have written the literal string %b instead.

Compatibility

Added: mIRC v5.3
Added on: 13 Dec 1997
Note: Unless otherwise stated, this was the date of original functionality.
Further enhancements may have been made in later versions.