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簡單腳本的問題:(

tag-icon • tag-icon bash scripts dd .sh
簡單腳本的問題:(

有人可以告訴我為什麼這個腳本不能正確運作嗎？ if 語句似乎有問題，因為我不斷收到錯誤：

/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'

劇本：

#!/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

作為@賽勒斯建議，您可能有一個非列印字元導致您出現問題。最可能的原因是，在某個時刻您從 Windows 電腦編輯了此腳本，並且 a\r添加到了行尾。您可以透過運行來檢查該行上是否有任何內容

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

這將顯示所有字符，包括非列印字符。

如果你確實有\r這個問題，你可以通過運行來修復它”

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

或者，安裝dos2unix( sudo apt-get install dos2unix) 並運行

dos2unix script.sh > fixed.sh

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