Bash script and bin bash M bad interpreter No such file or directory

Question

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

User · Answer

Run following command in terminal  sed -i -e  s  r     scriptname sh   Then try     scriptname sh   It should work

User · Answer

Your file has Windows line endings  which is confusing Linux   Remove the spurious CR characters  You can do it with the following command      sed -i -e  s  r     setup sh

User · Answer

In notepad   you can set it for the file specifically by pressing   Edit --  EOL Conversion --  UNIX OSX Format

User · Answer

Atom has a built-in line ending selector package  More details here  https   github com atom line-ending-selector

User · Answer

I develop on Windows and Mac Linux at the same time and I avoid this  M-error by simply running my scripts as I do in Windows     php   my script  No need to change line endings

User · Answer

If you use Sublime Text on Windows or Mac to edit your scripts   Click on View  gt  Line Endings  gt  Unix and save the file again

User · Answer

For Eclipse users  you can either change the file encoding directly from the menu File  gt  Convert Line Delimiters To  gt  Unix  LF   n  0           Or change the New text file line delimiter to Other  Unix on Window  gt  Preferences  gt  General  gt  Workspace panel

User · Answer

I was able to resolve the issue by opening the script in Gedit and saving it with the proper Line Ending option      File   Save As      In the bottom left of the Save As prompt  there are drop-down menus for Character Encoding and Line Ending  Change the Line Ending from Windows to Unix Linux then Save

User · Answer

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

User · Answer

This is caused by editing file in windows and importing and executing in unix    dos2unix -k -o filename should do the trick

User · Answer

problem is with dos line ending  Following will convert it for unix  dos2unix file name   NB  you may need to install dos2unix first with yum install dos2unix  another way to do it is using sed command to search and replace the dos line ending characters to unix format    sed -i -e  s  r     your script sh

[bash] Bash script and /bin/bash^M: bad interpreter: No such file or directory

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