cut命令常见选项

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" alt="" />

测试文本内容如下:

# cat name1.txt
name1 alvin1
name2 alvin2
name3 alvin3
name4 alvin4
# cat 2.txt
name1:100
name2:101
name3:102

(1) -c

剪切每列的第1个字符
# cat name1.txt | cut -c1
n
n
n
n
剪切每列的第1、3-4字符
# cat name1.txt | cut -c1,3-4
nme
nme
nme
nme
剪切每列的前8个字符
# cat name1.txt |cut -c-8
name1 al
name2 al
name3 al
name4 al

(2) -d -f 指定分割符后剪切指定域

以空格为分割符,切割第一域
# cat name1.txt | cut -d" " -f1
name1
name2
name3
name4
以:为分割符,切割第一域
# cat 2.txt | cut -d: -f1
name1
name2
name3

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