2 Unit 6

# # #unit6. Shell Script Command # # #

# # #1. diff

Difffile file1# #比较两个文件的不同

Diff-C # #显示周围的行

Diff-u # #按照格式统一输出生成的补丁

Diff-R # #比较两个目录文件的不同

??

Patch

Patchfile File.path# #打补丁

Patch-B # #备份原文件

# # #2. grep

grep key character file | directory # #在文件或目录中查找含有关键字的行

grep-I # #忽略大小写

grep-N # #显示关键字所在行

grep-C # #显示过滤结果的个数

grep-v # #反向过滤

grep-e "keyword 1| keyword 2"# #过滤多个关键字

grep- r keyword # #在目录中查找含有关键字的文件

Note: ^ keyword # #以关键字开头

Keyword $# #以关键字结尾

# # #3. Cut

Cut# #截取字符

Cut -D delimiter # #指定分隔符

Cut-F1,7 # #显示指定的列

CYT-C1-4 # #显示指定的字符

Show only IP addresses in ifconfig eth0

[Email protected] ~]# ifconfig eth0 | grep inet | grep inet6-v | Cut-d ""-F 10

[Email protected] ~]# ifconfig eth0 | grep inet | grep inet6-v | Awk-f "" ' {print $} '

# # #4. Sort

Sort# #排序

Sort-N # #纯数字排序

Sort-u # #去冗余 (Remove Duplicates)

Sort|uniq-c# #去除冗余并统计冗余次数

Sort-t # #指定分隔符

Sort-k # #指定列

# # #5. Uniq

Sort File | Uniq-c# #去掉冗余并统计冗余的次数

Sort File | uniq-d# #显示冗余行

Sort File | Uniq-u# #显示唯一行

# # #6. sed

Sed ' s/original character/replacement character/g ' file

Sed-e ' Strategy 1 '-e ' policy 2 ' file

Sed-i file# #把转换后的内容输入到指定文件

Sed ' 3,5s/original character/replacement character/g ' File # #3-5 line replacement

sed xd# #屏蔽指定行

Sed xp# #复制指定行

Sed-n xp# #只显示指定行

This article is from the "12115084" blog, please be sure to keep this source http://12125084.blog.51cto.com/12115084/1871584

2 Unit 6