bad interpreter

Vikenoshi · 03-21-2008, 01:49 PM

Hi,
I am a newbie here, I am in training
I have commands in a file called "copycat" like below :

#!/usr/bin/bash
read -p "Please input original string: " oldString
read -p "Please input the new string: " newString
sed -i "s/$oldString/$newString/g" $*

and these are steps what I do:

[user@selina ~]$ cd HW1
[user@selina HW1]$ chmod u+x copycat
[user@selina HW1]$ ./copycat *.c
-bash: ./copycat: /bin/bash^M: bad interpreter: 瘝奨?甇支?瑼鯏??緐澻??

I don't know where I got wrong.
If anyone can help me, I am so appreciate it.

colucix · 03-21-2008, 02:06 PM

Code:

-bash: ./copycat: /bin/bash^M: bad interpreter:

It looks like a file coming from Windows: the ^M sequence stats for "carriage return" plus "newline" control characters, that is the sequence \r\n in Unix. You have to strip away these control character. One way is by the dos2unix command:

Code:

dos2unix copycat

or you can use sed in this way

Code:

 sed -i 's/^M//g' copycat

where you type ^M by pressing Ctrl-V and Ctrl-M in sequence. Hope this will help.

Vikenoshi · 03-21-2008, 02:24 PM

code:
dos2unix copycat

It works !! Thanks a lot >.<