In mac osx, I'm trying to write a spinner that takes in a command and spins while running it












0














The usage would be for long commands called from the command line programatically. In my case php will be calling yarn update. If there is a space in the command I can't figure out how to run it.



I've been looking at the following



alias spin='{ f=$(cat -); 
eval $f;
while [ -n "$(ps -p $! -o pid=)" ]; do
echo -n ".";
sleep 1;
done
}<<<'


or



alias spin2='eval $*; echo $*; echo $!;
while [ -n "$(ps -p $! -o pid=)" ]; do
echo -n ".";
sleep 1;
done;
echo "all done"'


using zsh on macos mojave



the usage for testing would be spin sleep 4 or spin yarn install



not much of a spinner, I started off that way but I'd go for anything simple at the moment hence the dots.



cheers and thanks










share|improve this question



























    0














    The usage would be for long commands called from the command line programatically. In my case php will be calling yarn update. If there is a space in the command I can't figure out how to run it.



    I've been looking at the following



    alias spin='{ f=$(cat -); 
    eval $f;
    while [ -n "$(ps -p $! -o pid=)" ]; do
    echo -n ".";
    sleep 1;
    done
    }<<<'


    or



    alias spin2='eval $*; echo $*; echo $!;
    while [ -n "$(ps -p $! -o pid=)" ]; do
    echo -n ".";
    sleep 1;
    done;
    echo "all done"'


    using zsh on macos mojave



    the usage for testing would be spin sleep 4 or spin yarn install



    not much of a spinner, I started off that way but I'd go for anything simple at the moment hence the dots.



    cheers and thanks










    share|improve this question

























      0












      0








      0







      The usage would be for long commands called from the command line programatically. In my case php will be calling yarn update. If there is a space in the command I can't figure out how to run it.



      I've been looking at the following



      alias spin='{ f=$(cat -); 
      eval $f;
      while [ -n "$(ps -p $! -o pid=)" ]; do
      echo -n ".";
      sleep 1;
      done
      }<<<'


      or



      alias spin2='eval $*; echo $*; echo $!;
      while [ -n "$(ps -p $! -o pid=)" ]; do
      echo -n ".";
      sleep 1;
      done;
      echo "all done"'


      using zsh on macos mojave



      the usage for testing would be spin sleep 4 or spin yarn install



      not much of a spinner, I started off that way but I'd go for anything simple at the moment hence the dots.



      cheers and thanks










      share|improve this question













      The usage would be for long commands called from the command line programatically. In my case php will be calling yarn update. If there is a space in the command I can't figure out how to run it.



      I've been looking at the following



      alias spin='{ f=$(cat -); 
      eval $f;
      while [ -n "$(ps -p $! -o pid=)" ]; do
      echo -n ".";
      sleep 1;
      done
      }<<<'


      or



      alias spin2='eval $*; echo $*; echo $!;
      while [ -n "$(ps -p $! -o pid=)" ]; do
      echo -n ".";
      sleep 1;
      done;
      echo "all done"'


      using zsh on macos mojave



      the usage for testing would be spin sleep 4 or spin yarn install



      not much of a spinner, I started off that way but I'd go for anything simple at the moment hence the dots.



      cheers and thanks







      command-line mac zsh






      share|improve this question













      share|improve this question











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      share|improve this question










      asked Dec 12 '18 at 6:16









      Roni

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