./configure : /bin/sh^M : bad interpreter [duplica

Question

This question already has an answer here:

• Are shell scripts sensitive to encoding and line endings? 2 answers

I've been trying to install lpng142 on my fed 12 system. Seems like a problem to me. I get this error

[root@localhost lpng142]# ./configure
bash: ./configure: /bin/sh^M: bad interpreter: No such file or directory
[root@localhost lpng142]# 

How do I fix this? The /etc/fstab file:

#
# /etc/fstab
# Created by anaconda on Wed May 26 18:12:05 2010
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/VolGroup-lv_root /                       ext4    defaults        1 1
UUID=ce67cf79-22c3-45d4-8374-bd0075617cc8 /boot                   ext4    
defaults        1 2
/dev/mapper/VolGroup-lv_swap swap                    swap    defaults        0 0
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0

Answer 1

If you are using TextMate or a similar programme, do save as, and then in encodings choose LF instead of CRLF.

Answer 2

To fix, open your script with vi or vim and enter in vi command mode (key Esc), then type this:

:set fileformat=unix

Finally save it

:x! or :wq!

Answer 3

You can also do this in Kate.

1. Open the file
2. Open the Tools menu
3. Expand the End Of Line submenu
4. Select UNIX
5. Save the file.