Learn English From Linux

The grep command is one of the most consistently useful and pow-

erful in the Linux arsenal. Its premise is simple: given one or more

files, print all lines in those files that match a particular regular ex-

pression pattern.

arsenal:

n. 兵工厂；军械库

premise:

vt. 引出，预先提出；作为…的前提

n. 前提；上述各项；房屋连地基

vi. 作出前提