unix - How to store the value of cat command in the variable var? -


i'm trying find number of times string repeated in file, @ same time i've store in variable.

when use command (cat filename | grep -c '123456789') , displays count correctly when use below command shows command not found.

var =$(cat filename | grep -c '123456789') echo $var

can u let me know i'm wrong ?

don't use spaces around = sign:

var=$(cat filename | grep -c '123456789')

read @ least bash prog intro howto

but you've got useless use of cat code simply

    var=$(grep -c '123456789' filename)

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