What "-a" operator means in "if" statement Post: 302501047

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rescan-scsi-bus

RESCAN-SCSI-BUS.SH(8)					      System Manager's Manual					     RESCAN-SCSI-BUS.SH(8)

NAME

       rescan-scsi-bus.sh - rescan the SCSI bus.

SYNOPSIS

       rescan-scsi-bus.sh [ -l ] [ -w ] [ -c ] [ -r ] [ host...  ]

DESCRIPTION

       rescan-scsi-bus.sh is a program that is used to rescan the SCSI bus using the SCSI add-single-device feature of the Linux SCSI layer.

OPTIONS

       -l     Activates scanning for LUNs 0 .. 7 (default: 0).

       -L NUM Activates scanning for LUNs 0 .. LUN (default: 0).

       --luns=LIST
	      Scan only LUNs in LIST.

       -w     Enables scanning for device IDs 0 .. 15 (default: 0 .. 7).

       --ids=LIST
	      Scan only device IDs in LIST.

       -i, --issue-lip
	      Issue a FibreChannel LIP reset (default: disabled).

       -r, --remove
	      Enables removing of devices (default: disabled).

       --forceremove
	      Remove and readd every device (dangerous).

       -c     Enables scanning of channels 0 1 (default: 0).

       --channels=LIST
	      Scan only channels in LIST.

       host, --hosts=LIST
	      If host adapters are given, only these are scanned (default: all).

       --nooptscan
	      Don't stop looking for LUNs if 0 is not found.

       --color
	      Use coloured prefixes OLD/NEW/DEL.

       LIST is a comma separated list of single values and ranges (no spaces allowed), e.g. 0,2-3,8,10-15.

AUTHOR

       rescan-scsi-bus.sh was written by Kurt Garloff <garloff@suse.de>.

COPYRIGHT

       This  program  is free software. You can use it under the terms of the GNU GPL (General Public License) Version 2 (or any later version, at
       your option).  Note, that the GNU GPL implies, that there is NO WARRANTY at all.  Full text of the GPL can be found  in	/usr/share/common-
       licenses/GPL file.

AVAILABILITY

       rescan-scsi-bus.sh is available from
       http://www.garloff.de/kurt/linux/scsidev/

								    March 1998						     RESCAN-SCSI-BUS.SH(8)