if [ `expr $a \> $b` -eq 0 ];then echo $b is bigger else echo $a is bigger fi
[root@tengxunyunslave wallog]# cat /opt/monitor_load1.sh #!/bin/bash RECORD_TIME=`date '+%Y-%m-%d'` #获取现在的负载,如果大于30,记录active的SQL LOAD1=`/usr/bin/w|grep load|awk -F [':'] '{print $5}' |awk -F [','] '{print $1}' ` if [ `expr $LOAD1 \> 0.1` -eq 1 ]; then echo $LOAD1 echo "========================== $RECORD_TIME ===================================" >> /home/wallog/load_monitor.log /usr/bin/psql -Upostgres -p15432 -h127.0.0.1 -d postgres -c "select * from pg_stat_activity where state='active';" >> /home/wallog/load_monitor.log fi
(9条消息) Linux shell中对小数进行比较的方法_带大金链子的攻城狮的博客-CSDN博客_shell 小数比较