Mac os sierra dns reset

file, diff, grep, find

file

Get info from file

$ file  <filename>
$ file ~/.bash_profile

diff

Compare two files.

$ diff <file1> <file2>

GREP

usage: grep [-abcDEFGHhIiJLlmnOoqRSsUVvwxZ] [-A num] [-B num] [-C[num]] [-e pattern] [-f file] [–binary-files=value] [–color=when] [–context[=num]] [–directories=action] [–label] [–line-buffered] [–null] [pattern] [file …]

IE

$ grep root /etc/passwd
$ grep root /etc/*
$ grep ie /usr/share/dict/words | less

less : space key for next page, b for previous page, q for exit

find

usage: find [-H | -L | -P] [-EXdsx] [-f path] path … [expression] find [-H | -L | -P] [-EXdsx] -f path [path …] [expression]

IE

searching file

$ find <dir> -name <file> -print
$ find /Users/blackdog -name .bash_profile -print

• 2018 3
• 2017 22