[Solved] The syntax error for sh function

Discussion in 'Linux' started by quywz, Jul 7, 2018.

  1. quywz

    quywz MDL Junior Member

    Jun 30, 2017
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    #1 quywz, Jul 7, 2018
    Last edited: Jul 9, 2018
    Whatever using "gedit" command or "cat" command to edit sh function,the result is always syntax error.
    os:ubuntu 18.04 lts
    Code:
    #!/bin/sh
    function fun1()
    {
     echo --------
    }
    fun1
    
    ./xx.sh:2:syntax error: "(" unexpected

    Code:
    #!/bin/sh
    fun1()
    {
     echo --------
    }
    fun1
    
    ./xx.sh:4:syntax error: "}" unexpected
    syntax.png

    ================================================================================

    I known what is problem.
    it is /bin/sh -> dash,not /bin/sh -> bash
     
  2. Michaela Joy

    Michaela Joy MDL Crazy Lady

    Jul 26, 2012
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    Does it need a return value?

    maybe
    Code:
    #!/bin/sh
    void fun1()
    {
    }
    
    Just a guess from C and C++.
     
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  3. Tito

    Tito Super Mod / Adviser
    Staff Member

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  4. Tito

    Tito Super Mod / Adviser
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    Nov 30, 2009
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  5. Hadron-Curious

    Hadron-Curious MDL Guru

    Jul 4, 2014
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    From the little knowledge I have about syntaxes regarding executing such script it might be the way you are running it that is having the issue. As long as you have the Shebang on the first line you are not supposed to encounter that error message. Try to execute the script using ./ followed by the filename and extension.
     
  6. Michaela Joy

    Michaela Joy MDL Crazy Lady

    Jul 26, 2012
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    @quywz: I just tried your code in the bash editor that Tito provided.

    It works fine. :g:
     
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  7. quywz

    quywz MDL Junior Member

    Jun 30, 2017
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    syntax.png
     
  8. quywz

    quywz MDL Junior Member

    Jun 30, 2017
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    It is most peculiar.
    syntax.png
     
  9. Michaela Joy

    Michaela Joy MDL Crazy Lady

    Jul 26, 2012
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    It's possible that the cat command might be putting something extra in that's upsetting the scripter.

    Try dumping the file to the console and see what's in the file.
     
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  10. quywz

    quywz MDL Junior Member

    Jun 30, 2017
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    I known what is problem.
    it is /bin/sh -> dash,not /bin/sh -> bash
     
  11. quywz

    quywz MDL Junior Member

    Jun 30, 2017
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  12. Hadron-Curious

    Hadron-Curious MDL Guru

    Jul 4, 2014
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    Why is the space between your shebang and the slash there in the script?
     
  13. quywz

    quywz MDL Junior Member

    Jun 30, 2017
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    en........
    may be ,more press the space.