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Top Forums Shell Programming and Scripting changing a variable length text to a fixed length Post 302442058 by dc18 on Tuesday 3rd of August 2010 07:34:05 AM
Old 08-03-2010
Hi Scott,

I'm afraid your solution only works if there there are no spaces within the text ......... each space found within the text is also padded out to 18 spaces

Dave
 

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BEACON(8)						   Linux System Managers Manual 						 BEACON(8)

NAME
beacon - transmit periodic messages on an AX.25 port. SYNOPSIS
beacon [-c <src_call>] [-d <dest_call>[digi ..]] [-l] [-m] [-s] [-t interval] [-v] port "message" DESCRIPTION
Beacon transmits the message text on an AX.25 port every thirty minutes. The message is addressed to "IDENT" and is sent using the AX.25 callsign of the port specified on the command line. Typically the message text will contain spaces and/or other characters, therefore the message text should be enclosed in quotes to ensure they are passed to the beacon program untranslated. OPTIONS
-c Configure the source callsign for beacons. The default is to use the interface callsign. -d Configure the destination callsign for beacons. The default is "IDENT". Optional: Digipeaters may follow, separated with spaces. Use -d "DEST DIGI1 DIGI2 .." -l Enables the logging of errors to the system log, the default is off. -m Changes the destination address to "MAIL" and sends the message text once only. This option overrides any destination call- sign given with the -d option. -s Sends the message text once only. -t interval The time interval between messages, the interval is given in minutes and the default is thirty minutes. -v Display the version. SEE ALSO
ax25(4), axports(5). AUTHORS
Alan Cox GW4PTS <alan@cymru.net> Jonathan Naylor G4KLX <g4klx@g4klx.demon.co.uk> David Brooke G6GZH <db@fusk.demon.co.uk> Linux 10 February 1997 BEACON(8)
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