>Is there an easy way to disregard lines that contain only control >characters or filter the text?
Not trivially. As you've been shown, "tr -d" is your buddy. In the particular case of unwanted CR's in the input from a tty driver, the driver itself can strip those. Maybe something like: exec <input stty igncr while read ... ... done >>output The exec switches the stdin of the script to whatever so that the stty and the read loop both eat from the same device, which is not closed (thus losing the settings) between the two. -- Jim _______________________________________________ busybox mailing list [email protected] http://lists.busybox.net/mailman/listinfo/busybox
