11-05-2013
Ok. I think it is trying to sort byte 1 for 3 bytes, then byte 12 for 4 bytes. How would that statement work?
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M 47 HIS:LOT 32 DUTY 2 MIKE, FINISHED
MIKE ACTIVE STATUS
23TASK YES GOOD
100TASK NO GOOD
========================================
M 47 HIS:LOT 1 DUTY 1 MIKE, FINISHED
MIKE ACTIVE STATUS
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Hope Bob 1234 Main ST. Colorado Springs, CO 80920
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Hi all.
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07:12PM
07:53PM
07:54PM
08:07PM
10:15AM
10:21AM
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Hi to all.
I'm trying to sort this with the Unix command sort.
user1:12345678:3.5:2.5:8:1:2:3
user2:12345679:4.5:3.5:8:1:3:2
user3:12345687:5.5:2.5:6:1:3:2
user4:12345670:5.5:2.5:5:3:2:1
user5:12345671:2.5:5.5:7:2:3:1
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ASYNC(3) Library Functions Manual ASYNC(3)
NAME
async - framing for a serial line to Datakit
SYNOPSIS
ctlfd = open(".../ctl", ORDWR);
write(ctlfd, "push async", 10);
DESCRIPTION
This is not a device, but rather a stream module (see stream(3)) that can be pushed onto a stream. This module provides the framing neces-
sary to treat a serial line as a Datakit trunk. It is usually pushed onto a stream before the dkmux module. The frame includes a CRC.
Any received frames with an incorrect CRC are discarded.
The format of a message upstream of the module is:
channel # low byte
channel # high byte
control byte (0 means none)
data bytes
The format of a frame is:
0x7d
0x7d
channel # low byte
channel # high byte
crc low byte
crc high byte
0x7d
0x7d
All control bytes in the frame are preceded by a 0x9d byte. All 0x9d and 0x7d bytes in the data are followed by a 0x00 byte to distinguish
them from framing or control specifiers.
SEE ALSO
stream(3), cons(3), dk(3)
SOURCE
/sys/src/9/port/stasync.c
ASYNC(3)