Question

这个bash脚本正在备份文件或文件夹，我需要添加一个选项来压缩用户选择的文件。

这是我的代码，我可以选择在正确的地方为脚本询问是或否，以及什么是参数？

#!/bin/bash
#

backup_file=`date +%F_%R`_my_backup.tar

clear

echo *******************************************
echo
echo "**********Today's date is $(date)********"
echo  "The current directory $(pwd)"
echo
echo "***files in this directory are***"
echo -e "A full list of contents follows: $(ls -R)\n"
echo
echo


echo   *******Custom  Backup Program*******

echo

echo   ":Option 1:  Create a backup"

echo   ":Option 2:  Exit backup program"

echo -n "Enter your choice 1, 2  : "

read choice

case $choice in

1) echo "perform a backup"
      echo "Enter full path for backup"
      read filepath
      echo " Enter destination"
      read location
      if [  -d $filepath ] || [ -f $filepath ]
        then
        echo "would you like to compress ? y/n   ***** this is where i think it should be followed by if and else ?


         tar -cvzf $location/$backup_file  $filepath
         echo "File $filepath$backup_file has been created."
         echo "Here are you backup files"

        else
          echo "the $filepath does not exist"
      fi


   2) echo "Backup cancelled " ;;
esac

Answer 1

是的，你非常接近。请参阅代码修订

echo   *******Custom  Backup Program*******
echo
echo   ":Option 1:  Create a backup"
echo   ":Option 2:  Exit backup program"
echo -n "Enter your choice 1, 2  : "

read choice    
case $choice in  
   1) echo "perform a backup"
      echo "Enter full path for backup"
      read filepath
      echo " Enter destination"
      read location
      if [  -d $filepath ] || [ -f $filepath ]
        then
        echo "would you like to compress ? y/n" 
         #  ***** this is where i think it should be followed by if and else ?
         read compressed
         if [[ $compressed ~= [Yy]* ]] ; then
             tar -cvzf $location/$backup_file  $filepath
             echo "File $filepath$backup_file.gz has been created."
             echo "Here are you backup files"
         else 
             tar -cvf $location/$backup_file  $filepath
             echo "File $filepath$backup_file has been created."
             echo "Here are you backup files"
         fi   
        else
          echo "the $filepath does not exist"
      fi
   2) echo "Backup cancelled " ;;
esac

你也可以用嵌套的case语句来实现，这是我的偏好，即

 . . . .
read choice
case $choice in

  1) echo "perform a backup"
      echo "Enter full path for backup"
      read filepath
      echo " Enter destination"
      read location
      if [  -d $filepath ] || [ -f $filepath ]
        then
        echo "would you like to compress ? y/n"
         #  ***** this is where i think it should be followed by if and else ?
         read compressed
         case $compressed in
           [Yy]* )
             tar -cvzf $location/$backup_file  $filepath
             echo "File $filepath$backup_file.gz has been created."
             echo "Here are you backup files"
           ;;
           * )
             tar -cvf $location/$backup_file  $filepath
             echo "File $filepath$backup_file has been created."
             echo "Here are you backup files"
           ;;
         esac  
        else
          echo "the $filepath does not exist"
      fi
   2) echo "Backup cancelled " ;;
esac

我不确定你的消息是什么意思＆＃34;这是你的备份文件＆＃34;，但那不是'＃34;影响您的问题或脚本的功能。

尝试添加if else语句来询问用户是否必须添加压缩

1 个答案: