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Full Discussion: Observing error :syntax error in expression
Top Forums Shell Programming and Scripting Observing error :syntax error in expression Post 302967851 by ashima jain on Monday 29th of February 2016 08:46:18 AM
Old 02-29-2016
Observing error :syntax error in expression
Code:
#!/bin/bash

a1="04:29:39 - System health check failed"

i=$1
echo "a $((a$i))"

The script above gives the following error
$113> sh tryt.sh 1
tryt.sh: line 6: 04:29:39 - System health check failed: syntax error in expression (error token is ":29:39 - System health check failed")

It also fails when I try to compare in if condition. How to compare a$i to a value in if condition. My purpose is to display the statement.
Can someone explain?
 

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LEARN ABOUT DEBIAN

mpt-status

MPT-STATUS(8)						      System Manager's Manual						     MPT-STATUS(8)

NAME

       mpt-status - retrieve configuration and health status from LSI hardware RAID controllers

SYNOPSIS

       mpt-status [ options ]

DESCRIPTION

       The  mpt-status software is a query tool to access the running configuration and status of LSI SCSI HBAs.  mpt-status allows you to monitor
       the health and status of your RAID setup.

OPTIONS

	  --autoload
	      This will try to automatically load the mptctl kernel module.

       -u --controller <int>
	      Set the IOC unit (controller).

       -h --help
	      Print some help information.

       -n --newstyle
	      Use the new style output. This parameter was introduced to retain backwards compatibility. If not set, you get the old style output.
	      It  is very likely that the output of the newstyle format will change heavily in the future, so do not rely on it when writing plug-
	      ins for monitoring software, for example.

       -i --set_id <int>
	      Set id of primary device (check README).

       -p --probe_id
	      Use this to probe SCSI id's when not on id 0.

       -q --quiet
	      Do not display any warnings.

       -s --status_only
	      Only print the status information. This can be used for easy scripting

       -v --verbose
	      Print verbose information, such as warnings

       -V --version
	      Print version information

       -d --debug [<int>]
	      Enable debugging and set level optionally.  NOTE: This is not fully implemented yet.

DIAGNOSTICS

       The program's exit(2) status is meant to be interpreted as a bit mask. If everything went well, zero is returned. If not (i.e. if for exam-
       ple an error or unknown condition is detected), the bits of the return value shall be interpreted as:

       Bit   Value   Meaning
       -----------------------------------------------------------------
	 0	 1   Abnormal condition / unknown error
	 1	 2   A logical volume has failed
	 2	 4   A logical volume is degraded
	 3	 8   A logical volume is resyncing
	 4	16   At least one physical disk failed

	 5	32   At least one physical disk is in warning condition

REPORTING BUGS

       Report  bugs to your linux distribution or software vendor, if mpt-status was bundled on your installation. If you have been compiling mpt-
       status from the vanilla sources and experience problems, redirect them to preferably <ratz@drugphish.ch> or <rnibali@pyx.ch>.

BUGS

       Besides design bugs, gross software engineering and missing features, this software is considered pretty stable and can be used in  produc-
       tion environments.

FILES

       /dev/mptctl

SEE ALSO

       LSI  Logic  provides  CLI  tools  for  megaraid controllers which you can find on their webpage, following http://www.lsil.com/cm/Download-
       Search.do

AUTHOR

       mpt-status was written by Roberto Nibali <ratz@drugphish.ch>.

       This manual page was written by Steffen Joeris <steffen.joeris@skolelinux.de>, for the Debian project (but may be used by others).

								   November 2006						     MPT-STATUS(8)
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