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Full Discussion: Creating a shell script to check filesystem space
Operating Systems AIX Creating a shell script to check filesystem space Post 302075820 by heprox on Wednesday 7th of June 2006 03:43:20 AM
Old 06-07-2006
Question
Interstingly when I try run the following:

Code:
#!/bin/ksh
 
used_space=0
mount_point=${1:-"/tmp"}
threshold=${2:-10}
 
used_space=`df -k $mount_point | grep % | awk {'print $5'} | sed 's/%//g'`
print "Free Space available under \"$mount_point\" is `expr 100 - $used_space`%.\n"
 
if [ $used_space -gt $threshold ]
then
   print "Space Utilization on \"$mount_point\" has exceeded the threshhold of $
{threshold}%.\n"
else
   print "Free space on \"$mount_point\" is in normal parameters."
fi

I get:

Code:
expr: 0402-046 A specified operator requires numeric parameters.
Free Space available under "/tmp" is %.
 
run_rman_script_fs_check[12]: 830: 0403-012 A test command parameter is not valid.

...it looks like my version of AIX (5.2) doesn't like something about the expression "`expr 100 - $used_space`%.\n"?
 

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LEARN ABOUT CENTOS

mount_pcfs

mount_pcfs(1M)						  System Administration Commands					    mount_pcfs(1M)

NAME

       mount_pcfs - mount pcfs file systems

SYNOPSIS

       mount -F pcfs [generic_options] [-o FSType-specific_options] special | mount_point

       mount -F pcfs [generic_options] [-o FSType-specific_options] special mount_point

DESCRIPTION

       mount  attaches	an   MS-DOS  file system  (pcfs) to the file system hierarchy at the mount_point, which is the pathname of a directory. If
       mount_point has any contents prior to the mount operation, these are hidden until the file system is unmounted.

       If  mount is invoked with  special or  mount_point as the only arguments,  mount will search  /etc/vfstab to fill in the missing arguments,
       including the  FSType-specific_options; see mount(1M) for more details.

       The  special argument can be one of two special device file types:

	 o  A floppy disk, such as /dev/diskette0 or /dev/diskette1.

	 o  A  DOS logical drive on a hard disk expressed as device-name:logical-drive , where device-name specifies the special block device-file
	    for the whole disk and logical-drive is either a drive letter  (c  through	z)  or	a  drive  number  (1  through  24).  Examples  are
	    /dev/dsk/c0t0d0p0:c and /dev/dsk/c0t0d0p0:1.

       The  special device file type must have a formatted MS-DOS file system with either a 12-bit, 16-bit, or 32-bit File  Allocation Table.

OPTIONS

       generic_options

	   See	mount(1M) for the list of supported options.

       -o

	   Specify  pcfs file system specific options.	The following options are supported:

	   foldcase|nofoldcase

	       Force uppercase characters in filenames to lowercase when reading them from the filesystem. This is for compatibility with the pre-
	       vious behavior of  pcfs. The default is	nofoldcase.

FILES

       /etc/mnttab     table of mounted file systems

       /etc/vfstab     list of default parameters for each file system

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWesu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mount(1M), mountall(1M), mount(2), mnttab(4), vfstab(4), attributes(5), pcfs(7FS)

NOTES

       If the directory on which a file system is to be mounted is a symbolic link, the file system is mounted on the directory to which the  sym-
       bolic link refers, rather than on top of the symbolic link itself.

SunOS 5.10							    24 Nov 2003 						    mount_pcfs(1M)
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