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[box ~]$ sudo touch this /this
[box ~]$ /usr/lib64/nagios/plugins/check_file_age -f this
FILE_AGE CRITICAL: File not found - "this"
[box ~]$ /usr/lib64/nagios/plugins/check_file_age -f /root/
FILE_AGE CRITICAL: File not found - "/root/"
[box ~]$ /usr/lib64/nagios/plugins/check_file_age -f /this
FILE_AGE CRITICAL: File not found - "/this"

Code: Select all

[box ~]$ strace /usr/lib64/nagios/plugins/check_file_age -f /this
execve("/usr/lib64/nagios/plugins/check_file_age", ["/usr/lib64/nagios/plugins/check_"..., "-f", "/this"], [/* 33 vars */]) = 0
brk(0)                                  = 0xf02000
[...cut...]
read(3, "", 4096)                       = 0
close(3)                                = 0
lstat("\"/this\"", 0x7ffce9439ae0)      = -1 ENOENT (No such file or directory)
stat("\"/this\"", 0xf02130)             = -1 ENOENT (No such file or directory)
write(1, "FILE_AGE CRITICAL: File not foun"..., 44FILE_AGE CRITICAL: File not found - "/this"
) = 44

Code: Select all

[root@localhost ~]# /usr/local/nagios/libexec/check_file_age --version
check_file_age v2.0.3 (nagios-plugins 2.0.3)
The nagios plugins come with ABSOLUTELY NO WARRANTY. You may redistribute
copies of the plugins under the terms of the GNU General Public License.
For more information about these matters, see the file named COPYING.
[root@localhost ~]# /usr/local/nagios/libexec/check_file_age -f /this
FILE_AGE OK: /this is 31 seconds old and 0 bytes
[root@localhost ~]# strace -s 256 /usr/local/nagios/libexec/check_file_age -f /this
[ - SNIP - ]
stat("/this", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
stat("/this", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
write(1, "FILE_AGE OK: /this is 46 seconds old and 0 bytes\n", 49FILE_AGE OK: /this is 46 seconds old and 0 bytes
) = 49