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![Solved 1 #!/bin/bash 2 if [ $# != 1 ] 3 then 4 echo "Usage: | Chegg.com](https://media.cheggcdn.com/media/050/050bffca-9e0a-46c5-991a-893b415c7f94/phpQ8BMTn.png "Solved 1 #!/bin/bash 2 if [ $# != 1 ] 3 then 4 echo \"Usage: | Chegg.com")
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![Solved #!/bin/bash if [ $# -lt 2 ] then echo "error A" exit | Chegg.com](https://media.cheggcdn.com/media/881/88137e30-787b-48f5-a3c2-964ef0f3deeb/phpxrNXbk.png "Solved #!/bin/bash if [ $# -lt 2 ] then echo \"error A\" exit | Chegg.com")
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