Answer / vipul dalwala

sort $1 | uniq | tee output.txt

Answer / vipul dalwala

$1 is the filename u are passing from commnadline

i.e. sh sortAndUniq.sh filename.txt

So $1 = filename.txt

All the commnadline parameters passed to the script are get
stored in $1 , $2, $3....

For example : sh sortAndUniq.sh filename1.txt filename2.txt
filename3.txt

Then $1 = filename1.txt , $2 = filename2.txt , $3 =
filename3.txt

Answer / roopa

hey can you please tell me what is the avlue of $1
and how do we specify that in our script?

Answer / supriya

sort -u filename1 |tee file2

Answer / linuxdemon

sort $1 | uniq > output | echo "`cat output`"

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