Disk Monitoring shell script giving incorrect information
Hi All,
OS: Linux 86x64 bits Red Hat Linux
I get the email alert for the following when Alert condition is set for 30:
-> Below 30%(Should not get the email alert)
Expected output as per E-Mail alert:
(Not receiving any e-mail alert for this which is incorrect as the sapce is more than 30)
df -h output for:
Script:
Could someone please let me know what's wrong here?
Thanks for your time and help.
Regards,
a1_win
Moderator's Comments:
Please use [code] and [/code] tags when posting code, data or logs etc. to preserve formatting and enhance readability, thanks. You got a PM with a guide.
Last edited by zaxxon; 08-24-2011 at 03:11 AM..
Reason: code tags
#!/bin/bash
# Disk Space Monitoring for more than 95 %
# and Sending Alerts by Mail
if ;
then
`df -k |awk '$5 > 95 {print $1 " ----------- " $5}' |mailx -s "More than 95% disk usage in DEV" email@test.com';
else
exit 0
fi
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df -k | awk ' { if ( int($4) > 90)
{subject = $1 " More than 90% disk usage. Used: " $4
email = "email@test.com"
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Discussion started by: Satish Mantha
2 Replies
LEARN ABOUT FREEBSD
fdevname_r
DEVNAME(3) BSD Library Functions Manual DEVNAME(3)NAME
devname -- get device name
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <sys/stat.h>
#include <stdlib.h>
char *
devname(dev_t dev, mode_t type);
char *
devname_r(dev_t dev, mode_t type, char *buf, int len);
char *
fdevname(int fd);
char *
fdevname_r(int fd, char *buf, int len);
DESCRIPTION
The devname() function returns a pointer to the name of the block or character device in /dev with a device number of dev, and a file type
matching the one encoded in type which must be one of S_IFBLK or S_IFCHR. To find the right name, devname() asks the kernel via the
kern.devname sysctl. If it is unable to come up with a suitable name, it will format the information encapsulated in dev and type in a
human-readable format.
The fdevname() and fdevname_r() function obtains the device name directly from a file descriptor pointing to a character device. If it is
unable to come up with a suitable name, these functions will return a NULL pointer.
devname() and fdevname() return the name stored in a static buffer which will be overwritten on subsequent calls. devname_r() and
fdevname_r() take a buffer and length as argument to avoid this problem.
EXAMPLES
int fd;
struct stat buf;
char *name;
fd = open("/dev/tun");
fstat(fd, &buf);
printf("devname is /dev/%s
", devname(buf.st_rdev, S_IFCHR));
printf("fdevname is /dev/%s
", fdevname(fd));
SEE ALSO stat(2)HISTORY
The devname() function appeared in 4.4BSD. The fdevname() function appeared in FreeBSD 8.0.
BSD February 22, 2005 BSD