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  • 一键自动往crontab添加条目脚本

    脚本的优点:

    只要将 监控脚本 被监控程序 和重启脚本放在同一个目录下,并将被监控程序运行起来,即可自动添加到crontab中,建议配置mooon提供的process_monitor.sh一起使用。


    #!/bin/sh
    # writed by yijian on 2013/1/19
    # generic script used to install an iterm into crontab

    # http://code.google.com/p/mooon/source/browse/trunk/common_library/shell/install_crontab.sh


    # $monitor_name used to monitor the process named by $process_name,
    # if $process_name is hangup, $monitor_name will reboot it by $start_name.
    # before using $monitor_name, $process_name should be running,
    # the installation will get the path information automatically.
    # **PLEASE NOTE**: all files must be placed in the same directory.
    process_name=$1    # the fullname of process monitored (but not included directory)
    monitor_name=$2    # the path of monitor script (maybe included directory)
    start_name=$3      # the path of start script (maybe included directory)
    timedate_fields=$4 # five time and date fields
    me=`whoami`


    # check cmdline
    if test $# -ne 4; then
    echo "usage: process_name monitor_name start_name time_date"
    echo "EXAMPLE1: $0 mooon process_monitor.sh start_test.sh \"* * * * *\""
    echo "EXAMPLE2: $0 mooon /tmp/process_monitor.sh /tmp/start_test.sh \"* * * * *\""
    echo "monitor_name or start_name must be in the same directory with process_name, "
    echo "if monitor_name or start_name don't include directory"
    exit 1
    fi


    # get pid & username
    eval $(ps -C $process_name h -o pid,euser | awk -F" " '{ printf("pid=%s\nuser=%s\n",$1,$2); }')
    if test $? -ne 0; then
    echo "$process_name NOT RUNNING now"
    exit 1
    fi


    if test "X$me" != "X$user"; then
    echo "$process_name NOT RUNNING now"
    exit 1
    fi


    # get file path
    filepath=`readlink /proc/$pid/exe`
    if test $? -ne 0; then
    exit 1
    fi


    # get directory path
    binpath=`dirname $filepath`


    # check files
    if test -x $monitor_name; then
    monitor_path=$monitor_name
    else
    monitor_path=$binpath/$monitor_name
    fi
    if test -x $start_name; then
    start_path=$start_name
    else
    start_path=$binpath/$start_name
    fi


    if test ! -x $monitor_path; then
    echo "$monitor_path not exist"
    exit 1
    fi
    if test ! -x $start_path; then
    echo "$start_path not exist"
    exit 1
    fi


    # install crontab if not exist
    crontab -l | grep "$start_path" > /dev/null 2>&1
    if test $? -ne 0; then
    crontab -l > crontab.tmp
    echo -e "\n# the following monitor added by `basename $0`($process_name) on `date +"%Y-%m-%d %H:%M:%S"`" >> crontab.tmp
    echo "$timedate_fields $monitor_path $process_name $start_path" >> crontab.tmp
    crontab crontab.tmp
    if test $? -ne 0; then
    exit 1
    fi


    rm crontab.tmp
    fi


    exit 0

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  • 原文地址:https://www.cnblogs.com/aquester/p/9891742.html
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