shell脚本实现定时备份某文件

1：目标

实现在图像化界面输入需要备份的源文件路径、目标路径，定时的时间、然后通过输入的信息，把需要备份的源文件打包放到指定的目标路径下以执行定时任务的时间为子目录

把/shell/l.txt文件每分钟备份打包一次，放到/lile目录下面

1）输入源文件路径（必须为绝对路径）

2）输入目标目录

3）输入定时的时间

实现效果：

脚本文件：

1）实现图形化界面以及把获得的输入信息放到指定的位置

#!/bin/bash
input_sourcefile_location(){
     dialog --title "Input you base information" --form "Please enter you information about mysql backup information: (Please input Absolutely location) \nThe source location is you need backups file" 10 70 3 "The source file location:" 1 1 "" 1 30 50 0 2> /tmp/source.location
     result=$?
     if [ $result -eq 1 ] ;then
         echo -e "\e[2J\e[1;1H"
         exit 1;
     elif [ $result -eq 255 ] ;then
         echo -e "\e[2J\e[1;1H" 
         exit 255;
     fi
     input_destination_dir
}

input_destination_dir(){
    dialog --title "Input you base information" --form "Please enter you information about mysql backup information: (Please input Absolutely location) \nThe distination dir (you only need input the  dir,everydays back file will output the dir where use date is dir)  is you need backups file" 15 70 3 "The destination dir location:" 1 1 "" 1 30 50 0 2> /tmp/destination_dir
    result=$?
    if [ $result -eq 1 ] ;then
        input_sourcefile_location;
    elif [ $result -eq 255 ] ;then
        echo -e "\e[2J\e[1;1H" 
        exit 255;
    fi
    set_crontab_time
}
set_crontab_time(){
    dialog --title "Input you base information" --form "Please enter you information about mysql backup information:  \nThe crontab seting ,minutes,hours,day,mouth,week (eg:* */2 * * *) " 15 70 5 "The minutes set:" 1 1 "" 1 20 20 0  "The hours set:" 2 1 "" 2 20 20 0  "The day set:" 3 1 "" 3 20 20 0 "The month set:" 4 1 "" 4 20 20 0  "The week set:" 5 1 "" 5 20 20 0 2> /tmp/crontab
    result=$?
    echo $result > lll
    if [ $result -eq 1 ] ;then
        input_destination_dir
    elif [ $result -eq 255 ] ;then
        echo -e "\e[2J\e[1;1H" 
        exit 255;  
    fi
    crontab_exec
}
crontab_exec(){
    cat /tmp/crontab |tr "\n" " " > /tmp/day
    sed -i 's/$/export DISPLAY=:0.0 ;gnome-terminal -x \/bin\/bash -c "\/shell\/2.sh 2>>\/tmp\/log"  /g' /tmp/day
    cat /tmp/day >> /var/spool/cron/root
    echo >> /var/spool/cron/root
}
input_sourcefile_location

2）对输入的信息进行处理

#!/bin/bash
dirname=`date +%Y%m%d%H%M`
destination_dir=`cat /tmp/destination_dir`
source_file=`cat /tmp/source.location`
source_dir=`echo ${source_file%/*}`
file_name=`awk -F / '{print $NF}' /tmp/source.location`
tar_file=$file_name.tar.gz

if [ ! -d $destination_dir ] ;then
     mkdir -p $destination_dir
fi
mkdir $destination_dir/$dirname
cd $source_dir
tar -zcf $tar_file $file_name
cp $tar_file $destination_dir/$dirname
rm -rf $tar_file