don't know your context here, but can you just do this on the commandline?

sort -n /tmp/data

# make sure that it's a real tab char in there for the output
# note different sort params as example
sort -t '|' -k 1 -n /tmp/data | cut -d '|' --output-delimiter='      '
+ -f 1,2

# and to completely mimic the output of your code:
sort -n /tmp/data | perl -F'\|' -nae 'print "\t$F[0]\t\t$F[1]";'
sort -n /tmp/d | awk -F \| '{ print "\t" $1 "\t\t" $2 }'
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