小象学院 互联网大厂数据分析项目实战

参数全称

-v, --invert-match    Invert the sense of matching, to select non-matching lines.-n, --line-number    Prefix each line of output with the 1-based line number within its input file.-i, --ignore-case    Ignore case distinctions, so that characters that differ only in case match each other.