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简单脚本有问题:(

tag-icon • tag-icon bash scripts dd .sh
简单脚本有问题:(

有人能告诉我为什么这个脚本无法正确运行吗？似乎是 if 语句有问题，因为我一直收到错误：

/home/sinttx/Development/backup/ddbackup.sh: line 18: syntax error near unexpected token `then'
/home/sinttx/Development/backup/ddbackup.sh: line 18:  if [ "$exit" -eq 0 ] ; then'

剧本：

#!/bin/bash

#(SINTTX) Function and if statement to backup/clone /dev/???.

 echo "
 THIS WILL COMPLETE A BACKUP OF DESIRED /DEV "

 echo -n "Enter desired name for saved file (File will be saved with extention .iso) and press [ENTER]: "
 read iso  
 echo -n "Enter the device to be duplicated/backed up (Eg /dev/sda) and press [ENTER]: "  
 read dev  
 echo -n "Enter the desired path/location for the backup file (Eg /home/USERNAME/backups/) and press [ENTER]: "  
 read path  
 echo "PLEASE ENTER THE SUDO PASSWORD (IF PROMPTED) AND WAIT :-)  
 NOTE: THIS COULD TAKE SOME TIME DEPENDING ON FILE SIZE AND HARDWARE SPEED!!"  
 sudo dd if="$dev" of="$path"/"$iso"  
 exit=$?  
 if [ "$exit" -eq 0 ] ; then  
  echo "SUCCESS"  
 else  
  echo "BACKUP HAS SUFFERED AN ERROR AND DID NOT COMPLETE SUCCESSFULLY"  
fi

答案1

作为@Cyrus 建议，您可能有一个非打印字符导致出现问题。最可能的原因是，您在某个时候从 Windows 计算机编辑了此脚本，并\r在行尾添加了一个。您可以通过运行来检查该行中是否有任何内容

grep 'if [ "$exit"' script.sh | od -c

这将显示所有字符，包括非打印字符。

如果确实存在\r，你可以通过运行“来修复它”

sed -i 's/\r//' script.sh

或者，安装dos2unix( sudo apt-get install dos2unix) 并运行

dos2unix script.sh > fixed.sh

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