How do I pass a file as an argument in bash scripting?

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I'm a bit confused, so I looked it up, and I found this: 



FILE1=$1
wc $FILE1


this is a bit confusing to me, what does assigning the variable expression operator, followed by the number 1 to FILE1, but FILE1 is just a variable, and we're assigning what? The number 1 to the variable expression operator?



How does this work exactly?



What can I do to better understand this concept?






bash






share

























    up vote
    0
    down vote

    favorite












    I'm a bit confused, so I looked it up, and I found this: 



    FILE1=$1
    wc $FILE1


    this is a bit confusing to me, what does assigning the variable expression operator, followed by the number 1 to FILE1, but FILE1 is just a variable, and we're assigning what? The number 1 to the variable expression operator?



    How does this work exactly?



    What can I do to better understand this concept?






    bash






    share























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I'm a bit confused, so I looked it up, and I found this: 



      FILE1=$1
      wc $FILE1


      this is a bit confusing to me, what does assigning the variable expression operator, followed by the number 1 to FILE1, but FILE1 is just a variable, and we're assigning what? The number 1 to the variable expression operator?



      How does this work exactly?



      What can I do to better understand this concept?






      bash






      share













      I'm a bit confused, so I looked it up, and I found this: 



      FILE1=$1
      wc $FILE1


      this is a bit confusing to me, what does assigning the variable expression operator, followed by the number 1 to FILE1, but FILE1 is just a variable, and we're assigning what? The number 1 to the variable expression operator?



      How does this work exactly?



      What can I do to better understand this concept?






      bash




      bash





      share












      share










      share



      share










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