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  1. wube

    Difference between du and adding up the bytes from ls -laR

    Can someone expalin the size difference between the two commands : 1. du -ks . 2. ls -laR | awk '{ sum += $5 } END { print sum/1024 }' - $5 is the 5th column that displays the byte count I thought that at least the two figures should be close since both are supposed to display the total...
  2. wube

    Test if numeric

    I am currently writing a script that expects input to be keyed in, and I have to verify if the input is numeric or not. #!/bin/sh read input echo $input | awk ' { if ( $0 ~ /[0-9]/ ) printf " input contains numerics only" else printf " input...
    • wube
    • Thread
    • Replies: 3
    • Forum: AWK

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