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Shell Programming and Scripting
Create new file with increment column based on conditions
Post 302922246 by shamrock on Thursday 23rd of October 2014 12:09:49 PM
10-23-2014
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A B C D
12 230 16 259
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21 291 36 298
41 309 49 420
52 425 57 450
61 456 70 473
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LEARN ABOUT CENTOS
scsi_start
SCSI_START(8) SG3_UTILS SCSI_START(8) NAME
scsi_start - start one or more SCSI disks SYNOPSIS
scsi_start [--help] [--verbose] [--wait] DEVICE [DEVICE]* DESCRIPTION
This bash shell script calls the sg_start utility on each given DEVICE. The purpose is to spin up (start) each given DEVICE. OPTIONS
Arguments to long options are mandatory for short options as well. -h, --help print out the usage message then exit. -v, --verbose increase level or verbosity. -w, --wait wait for the spin up (start) on each given DEVICE to complete. The default action is to do each start in immediate mode. NOTES
If a large number of disks are spun up at the same time (i.e. without the --wait option) then the power supply may be overloaded. EXIT STATUS
The exit status of this script is 0 when it is successful. Otherwise the exit status is that of the last sg_start utility called. See the sg3_utils(8) man page. AUTHORS
Written by D. Gilbert COPYRIGHT
Copyright (C) 2009-2013 Douglas Gilbert This software is distributed under a FreeBSD license. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR- POSE. SEE ALSO
sg_start (sg3_utils) sg3_utils-1.36 May 2013 SCSI_START(8)