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I've created a bash script but when I try to execute it, I get

#!/bin/bash no such file or directory

I need to run the command: bash script.sh for it to work.

How can I fix this?

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What are the permissions of your script? Also, it should be bin/bash not binbash. –  Faheem Mitha Dec 17 '11 at 15:28
sorry typo. I will edit it. –  ndefontenay Dec 17 '11 at 15:36
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2 Answers

up vote 12 down vote accepted

Usually, this kind of message is due to an extra carriage return at the end of the first line. Run

$ head -1 yourscript | od -c

and see how it ends: This is wrong

0000000   #   !   /   b   i   n   /   b   a   s   h  \r  \n

This is correct:

0000000   #   !   /   b   i   n   /   b   a   s   h  \n

Use dos2unix to fix your script if this is the issue.

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Another way of revealing if this is the problem is hexdump -C yourscript | head -n 1. I would still use dos2unix yourscript to fix it. –  Kevin M Dec 17 '11 at 23:32
Yes it could very well be that. I edited in on windows. Things for the tip. –  ndefontenay Dec 18 '11 at 2:17
It's totally that :/ Thanks a lot! –  ndefontenay Dec 19 '11 at 0:12
If it were a CRLF problem, you wouldn't see a #!/bin/bash no such file or directory error message, as there's no reason anything would try to execute or open #!/bin/bash. It's /bin/bash<CR> what would be executed. –  Stephane Chazelas Jan 18 at 8:47
@StephaneChazelas As dos2unix fixed the problem, there is little doubt it wasn't a CRLF problem. The error message was probably just inaccurately transcripted.. –  jlliagre Jan 18 at 18:28
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Try #!/bin/bash

Second thing: find / -name bash
Third thing: ls -al /bin/bash

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Or just which bash. We know it's finding one because it's working with bash script.sh. –  Kevin Dec 18 '11 at 2:58
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