32、深入探索Bash编程：系统监控脚本与相关知识

深入探索Bash编程：系统监控脚本与相关知识

1. 系统监控脚本示例

首先，我们来看一个完整的系统监控脚本示例。该脚本的主要功能是实时监控系统的各项资源使用情况，如CPU、内存、网络等，并在出现异常时发出警报。

# Add a message to the alarm log. Duplicate messages are discarded. # Parameter 1 = the message to add # —————————————————————————————————————— function alarm { # Anything logged this time around means system isn’t OK, even if it was # a repeated message that was suppressed SYSTEM_OK= # Ignore repeated alarms [ “$1” = “$LASTLOG” ] && return LASTLOG=”$1” # Add the log message to the list of alarms LOG8=”$LOG7” LOG7=”$LOG6” LOG6=”$LOG5” LOG5=”$LOG4” LOG4=”$LOG3” LOG3=”$LOG2” LOG2=”$LOG1” LOG1=”$TIME - “”$1” LOG_UPDATED=1 } readonly -f alarm declare -