僅列印某些欄位
perl -lane'print "$F[0] $F[-1]"' data.txt
# prints the first and the last fields of a space delimited record
CSV 示例：
perl -F, -lane'print "$F[0] $F[-1]"' data.csv
perl -lane'print "$F[0] $F[-1]"' data.txt
# prints the first and the last fields of a space delimited record
CSV 示例：
perl -F, -lane'print "$F[0] $F[-1]"' data.csv