This file is indexed.

/usr/bin/fileconvert-v1-to-v2 is in etktab 3.2-4.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

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#!/bin/sh

case "$1" in 
    "" | -* )
    echo "Usage:  $0 <filename> [...]"
    exit
    ;;
esac
for i in $* ; do
    if [ -f $i ] ; then
        newname=`echo $i | sed 's/etk$/et6.gz/' | sed 's/etb$/et4.gz/'`
        mv $i $newname
        gzip -d $newname
    else
        echo "No such file \"$i\""
    fi
done