尽管我/usr/local/bin/lmstat
,但下面的脚本总是以Cannot find "lmstat"
失败。
有人能看出为什么会这样吗?
use strict;
use Getopt::Long;
use vars qw($opt_V $opt_h $opt_F $opt_t $verbose $PROGNAME);
use FindBin;
use lib "$FindBin::Bin";
use lib '/usr/lib64/nagios/plugins';
use utils qw(%ERRORS &print_revision &support &usage);
$PROGNAME="check_flexlm";
sub print_help ();
sub print_usage ();
$ENV{'PATH'}='/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin';
$ENV{'BASH_ENV'}='';
$ENV{'ENV'}='';
Getopt::Long::Configure('bundling');
GetOptions
("V" => \$opt_V, "version" => \$opt_V,
"h" => \$opt_h, "help" => \$opt_h,
"v" => \$verbose, "verbose" => \$verbose,
"F=s" => \$opt_F, "filename=s" => \$opt_F,
"t=i" => \$opt_t, "timeout=i" => \$opt_t);
if ($opt_V) {
print_revision($PROGNAME,'2.2.1');
exit $ERRORS{'OK'};
}
unless (defined $opt_t) {
$opt_t = $utils::TIMEOUT ; # default timeout
}
if ($opt_h) {print_help(); exit $ERRORS{'OK'};}
unless (defined $opt_F) {
$opt_F = $ENV{'LM_LICENSE_FILE'};
unless (defined $opt_F) {
print "Missing license.dat file\n";
print_usage();
exit $ERRORS{'UNKNOWN'};
}
}
# Just in case of problems, let's not hang Nagios
$SIG{'ALRM'} = sub {
print "Timeout: No Answer from Client\n";
exit $ERRORS{'UNKNOWN'};
};
alarm($opt_t);
my $lmstat = $utils::PATH_TO_LMSTAT ;
unless (-x $lmstat ) {
print "Cannot find \"lmstat\"\n";
exit $ERRORS{'UNKNOWN'};
}
答案 0 :(得分:8)
永远不要假设你知道什么是东西。尝试打印路径以验证它是否符合您的想法:
unless (-x $utils::PATH_TO_LMSTAT ) {
print qq/Cannot find "lmstat" at <$utils::PATH_TO_LMSTAT>\n/;
exit $ERRORS{'UNKNOWN'};
}
如果$utils::PATH_TO_LMSTAT
是相对路径(例如lmstat
),-x
正在查找当前目录。如果它是一个完整的路径,也许你的字符串错了。
请注意,您的选项处理可能不那么笨拙,因为您可以在同一个键中为选项指定多个名称:
GetOptions(
"V|version" => \$opt_V,
"h|help" => \$opt_h,
"v|verbose" => \$verbose,
"F|filename=s" => \$opt_F,
"t|timeout=i" => \$opt_t,
);
Mastering Perl的“安全编程技术”一章讨论了调用外部程序的程序的许多令人头疼的问题。