01-07-2010
Try running the du command by itself from the command line. I'm thinking it might be outputting something more than just an interger. If so then that's why it's unable to compare it with another interger and so the test fails.
If the output is more spitting out more than just a number, then you might want to pipe it through awk to get the field you need. I would suggest assigning the output to a variable and then using that in your test statement. Let me know what happens.
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LEARN ABOUT CENTOS
cmap_dec
CMAP_DEC(3) Corosync Cluster Engine Programmer's Manual CMAP_DEC(3)
NAME
cmap_inc - Decrease already stored value in CMAP
SYNOPSIS
#include <corosync/cmap.h>
cs_error_t cmap_dec (cmap_handle_t handle, const char *key_name);
DESCRIPTION
The cmap_dec function is used to decrease integer value of already stored key inside cmap. The handle argument is connection to CMAP data-
base obtained by calling cmap_initialize(3) function. key_name is name of key to increase value of.
Function is defined only on values where increase makes sense and is well defined, so it can be one of:
CMAP_VALUETYPE_INT8 - 8-bit signed interger
CMAP_VALUETYPE_UINT8 - 8-bit unsigned integer
CMAP_VALUETYPE_INT16 - 16-bit signed interger
CMAP_VALUETYPE_UINT16 - 16-bit unsigned integer
CMAP_VALUETYPE_INT32 - 32-bit signed interger
CMAP_VALUETYPE_UINT32 - 32-bit unsigned integer
CMAP_VALUETYPE_INT64 - 64-bit signed interger
CMAP_VALUETYPE_UINT64 - 64-bit unsigned integer
Overflow/underflow is not detected and it's ignored.
RETURN VALUE
This call returns the CS_OK value if successful. If value or key_name are unspecified, CS_ERR_INVALID_PARAM is returned. CS_ERR_NOT_EXIST
error is returned if key doesn't exist (wasn't created by calling cmap_set(3) first). Some of keys may be tagged read-only directly in
corosync and seting such key will result in CS_ERR_ACCESS error.
SEE ALSO
cmap_get(3), cmap_set(3), cmap_initialize(3), cmap_overview(8)
CS_ERR_TRY_AGAIN Resource temporarily unavailable
CS_ERR_INVALID_PARAM Invalid argument
CS_ERR_ACCESS Permission denied
CS_ERR_LIBRARY The connection failed
CS_ERR_INTERRUPT System call inturrupted by a signal
CS_ERR_NOT_SUPPORTED The requested protocol/functuality not supported
CS_ERR_MESSAGE_ERROR Incorrect auth message received
CS_ERR_NO_MEMORY Not enough memory to completed the requested task
corosync Man Page 03/02/2012 CMAP_DEC(3)