Bash script and /bin/bash^M: bad interpreter: No such file or directory [duplicate]
I'm learning through this tutorial to learn bash scripts to automate a few tasks for me. I'm connecting to a server using putty.
The script, located in .../Documents/LOG, is:
#!/bin/bash
# My first script
echo "Hello World!"
And I executed the following for read/write/execute permissions
chmod 755 my_script
Then, when I enter ./my_script, I'm getting the error given in the title.
Some similar questions wanted to see these, so I think they might help:
which bash
/bin/bash
and
echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/bin/mh
I tried adding current directory to PATH, but that doesn't work..
I have seen this issue when creating scripts in Windows env and then porting over to run on a Unix environment.
Try running dos2unix on the script:
http://dos2unix.sourceforge.net/
Or just rewrite the script in your Unix env using vi and test.
Unix uses different line endings so can't read the file you created on Windows. Hence it is seeing ^M as an illegal character.
If you want to write a file on Windows and then port over, make sure your editor is set to create files in UNIX format.
In notepad++ in the bottom right of the screen, it tells you the document format. By default, it will say Dos\Windows. To change it go to
- settings->preferences
- new document / default directory tab
- select the format as unix and close
- create a new document
Run following command in terminal
sed -i -e 's/\r$//' scriptname.sh
Then try
./scriptname.sh
It should work.
If you use Sublime Text on Windows or Mac to edit your scripts:
Click on View > Line Endings > Unix and save the file again.
This is caused by editing file in windows and importing and executing in unix.
dos2unix -k -o filename should do the trick.
In notepad++ you can set it for the file specifically by pressing
Edit --> EOL Conversion --> UNIX/OSX Format
