Changing position of a character in a string












0















String:



34    /foo/bar_11,,,


I want to insert "34" instead of the second comma. So my string should look like this:



/foo/bar_11,34,


How I can do it?










share|improve this question

























  • So you want to move the 34 from the start of the line?

    – steeldriver
    Jan 28 at 14:18











  • @steeldriver, yes

    – Josef Klimuk
    Jan 29 at 6:08
















0















String:



34    /foo/bar_11,,,


I want to insert "34" instead of the second comma. So my string should look like this:



/foo/bar_11,34,


How I can do it?










share|improve this question

























  • So you want to move the 34 from the start of the line?

    – steeldriver
    Jan 28 at 14:18











  • @steeldriver, yes

    – Josef Klimuk
    Jan 29 at 6:08














0












0








0








String:



34    /foo/bar_11,,,


I want to insert "34" instead of the second comma. So my string should look like this:



/foo/bar_11,34,


How I can do it?










share|improve this question
















String:



34    /foo/bar_11,,,


I want to insert "34" instead of the second comma. So my string should look like this:



/foo/bar_11,34,


How I can do it?







sed






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 28 at 14:14







Josef Klimuk

















asked Jan 28 at 14:08









Josef KlimukJosef Klimuk

553117




553117













  • So you want to move the 34 from the start of the line?

    – steeldriver
    Jan 28 at 14:18











  • @steeldriver, yes

    – Josef Klimuk
    Jan 29 at 6:08



















  • So you want to move the 34 from the start of the line?

    – steeldriver
    Jan 28 at 14:18











  • @steeldriver, yes

    – Josef Klimuk
    Jan 29 at 6:08

















So you want to move the 34 from the start of the line?

– steeldriver
Jan 28 at 14:18





So you want to move the 34 from the start of the line?

– steeldriver
Jan 28 at 14:18













@steeldriver, yes

– Josef Klimuk
Jan 29 at 6:08





@steeldriver, yes

– Josef Klimuk
Jan 29 at 6:08










1 Answer
1






active

oldest

votes


















2














I think the only way to do this is using capture groups to capture the thing you want to move, and the thing you want to move it past, optionally matching and discarding any unwanted characters such as whitespace, and then replace them in the desired order



Ex.



$ sed -E 's/^([[:alnum:]]+)[[:blank:]]*([^,]*,[^,]*),/21/' <<< '34    /foo/bar_11,,,'
/foo/bar_11,34,





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    1 Answer
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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    2














    I think the only way to do this is using capture groups to capture the thing you want to move, and the thing you want to move it past, optionally matching and discarding any unwanted characters such as whitespace, and then replace them in the desired order



    Ex.



    $ sed -E 's/^([[:alnum:]]+)[[:blank:]]*([^,]*,[^,]*),/21/' <<< '34    /foo/bar_11,,,'
    /foo/bar_11,34,





    share|improve this answer






























      2














      I think the only way to do this is using capture groups to capture the thing you want to move, and the thing you want to move it past, optionally matching and discarding any unwanted characters such as whitespace, and then replace them in the desired order



      Ex.



      $ sed -E 's/^([[:alnum:]]+)[[:blank:]]*([^,]*,[^,]*),/21/' <<< '34    /foo/bar_11,,,'
      /foo/bar_11,34,





      share|improve this answer




























        2












        2








        2







        I think the only way to do this is using capture groups to capture the thing you want to move, and the thing you want to move it past, optionally matching and discarding any unwanted characters such as whitespace, and then replace them in the desired order



        Ex.



        $ sed -E 's/^([[:alnum:]]+)[[:blank:]]*([^,]*,[^,]*),/21/' <<< '34    /foo/bar_11,,,'
        /foo/bar_11,34,





        share|improve this answer















        I think the only way to do this is using capture groups to capture the thing you want to move, and the thing you want to move it past, optionally matching and discarding any unwanted characters such as whitespace, and then replace them in the desired order



        Ex.



        $ sed -E 's/^([[:alnum:]]+)[[:blank:]]*([^,]*,[^,]*),/21/' <<< '34    /foo/bar_11,,,'
        /foo/bar_11,34,






        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Jan 28 at 14:32

























        answered Jan 28 at 14:15









        steeldriversteeldriver

        68.7k11113184




        68.7k11113184






























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