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Shell Programming and Scripting
Check for empty string
Post 302161193 by vino on Thursday 24th of January 2008 12:00:04 AM
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Hi,
I need to check for value not equal (<>) to 21 and not equal empty or null values.
Please modify this script
if
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LEARN ABOUT HPUX
vparutil
vparutil(1M) vparutil(1M) NAME
vparutil - get and set SCSI parameters for SCSI controllers from a virtual partition SYNOPSIS
dev_path dev_path dev_path scsi_id] scsi_rate] DESCRIPTION
The command gets and sets SCSI parameters for SCSI controllers within a running virtual partition. When setting the SCSI parameters using the option, the virtual partition which owns the specified SCSI controller must be in the down state. If not, the command will fail with the appropriate error code. The SCSI parameters for a given SCSI controller must first be set (from the firmware BCH prompt or using the option) before the parameters can be retrieved using the option. The command is allowed on Itanium(R)-based platforms for compatibility. No action is taken for the command. Options recognizes the following command-line options: Deletes an entry for the specified SCSI controller at dev_path from the SCSI table. Gets the SCSI parameters for the specified SCSI controller at dev_path. Sets the SCSI parameters for the specified SCSI controller at dev_path. Operands recognizes the following command-line operands: dev_path The device path of the SCSI controller. id The SCSI ID for the specified controller (defaults to 7). rate The SCSI rate for the specified controller. This parameter can have one of two values: for the corresponding fast wide and ultra wide SCSI interfaces. Note For managing SCSI controllers, use corresponding SCSI utilities. For further information refer to SECURITY RESTRICTIONS
This command is restricted to processes owned by superuser. When virtual partition flexible administrative capability is enabled, only a Designated-Admin vPar can set SCSI parameters for SCSI con- trollers. EXAMPLES
Set the SCSI ID for controller at 0/0/2/0 to 3 with the fast wide rate: RETURN VALUE
Successful. Invalid SCSI controller specification. Invalid SCSI ID. Could not communicate with virtual partition monitor. Virtual partition which owns SCSI controller is not in down state. Internal firmware call failed. Other error. AUTHOR
was developed by the Hewlett-Packard Company. SEE ALSO
vparadmin(1M), vparboot(1M), vparcreate(1M), vparconfig(1M), vpardump(1M), vparefiutil(1M), vparenv(1M), vparextract(1M), vparmodify(1M), vparreloc(1M), vparremove(1M), vparreset(1M), vparstatus(1M), vparresources(5), vpartition(5), vpmon(5). vparutil(1M)