echo 0123456789abcdef0123456789abcdef

1cpuer

echo 0123456789abcdef0123456789abcdef | sed "s/.{8}/[ \t]/g"

测试：down
E:\1dos>echo 0123456789abcdef0123456789abcdef | sed "s/.\{8\}/[ \t]/g"
[       ][      ][      ][      ]

愿：0123456789abcdef0123456789abcdef  第8字符加 [空格]其他不变
0123456789abcdef0123456789abcdef
012345678    9abcdef0123456789abcdef  。。。。。。就是这样！


E:\1dos>echo 0123456789abcdef0123456789abcdef | sed "s/.\{8\}/&[ \t]/g"
01234567[       ]89abcdef[      ]01234567[      ]89abcdef[      ]

E:\1dos>echo 0123456789abcdef0123456789abcdef | sed "s/89/&[ \t]/g"
0123456789[     ]abcdef0123456789[      ]abcdef

我只要第8加空格

mswsg

每行的第八字符加空格？

haooooaaa

1. echo 0123456789abcdef0123456789abcdef | sed -r 's/\S{8}/& /'
   
2. 01234567 89abcdef0123456789abcdef

复制代码

1. awk '{sub(".{8}","& ")}1'

复制代码

sunzhiguolu

1. echo 0123456789abcdef0123456789abcdef|perl -ple '{$_=substr($_,0,8)." ".substr($_,8)}'

复制代码

01234567 89abcdef0123456789abcdef

1. echo 0123456789abcdef0123456789abcdef|perl -ple '{s/(?<=8)/ /}'

复制代码

012345678 9abcdef0123456789abcdef

1cpuer

回复 3# haooooaaa

echo 0123456789abcdef0123456789abcdef | sed -r 's/\S{8}/& /'

\S 是生么




   

songyc_2015

echo '0123456789abcdef0123456789abcdef' | awk -F '' '{$8=$8" "}1' OFS=
echo '0123456789abcdef0123456789abcdef' | awk -F '' '$8=$8" "' OFS=

haooooaaa

回复 6# 1cpuer


非空白 \S

287380917

你要的是第8个字符还是8之后啊？
现学现卖一个：

1. echo "0123456789abcdef0123456789abcdef"|sed 's/./ /10'

复制代码

今天下午刚刚学到的
结果是：
012345678 abcdef0123456789abcdef
想换成\t就这样sed 's/./\t/10'

夏寥寥

回复 3# haooooaaa
请问这里面的&表示什么意思呢？谢谢！