找数字

aaaa_123

大家好可以帮找出下面在每行中只有一种数字的吗  谢谢

poiu2ytrewqlkj2hgfdsamnbvcxz

zx2cvbnma22sdfghjklqw2ertyuiop

po2i2u2y2t2r2e2wqlkj2hgfdsamnbvcxz

zxc1vbnma9sdfg2hjk7lqwertyuiop

poi2u2ytr2ew4qlkjhgfdsamnbvcxz

zxc25252vbnmas22525522dfghjklqwertyuiop

poiu2255ytrew5522qlkjhgfdsamnbvcxz

zxcv11bnmasdfghjklqwertyuiop

poi3u3ytrewqlkjhgfdsamnbvcxz

zxcv4bnm4asdfghjklqwertyuiop

poiuytrewqlkjhgfdsa5m5nbvcxz

zxcvbnmasdfghjklqwertyuiop66

poiuytrewqlkjhgfdsa7nbvcxz

zxcvbnmasdf8gh8jklqwertyuiop

poiuytrewqlkjh99gfdsamnbvcxz

zxcvbnm0a0sdfghjklqwertyuiop
111
22222
333
44
poiuytrewqlkjhgfdsamnbvcxz
zxcvbnmasdfghjklqwertyuiop



得到...
poiu2ytrewqlkj2hgfdsamnbvcxz
zx2cvbnma22sdfghjklqw2ertyuiop
po2i2u2y2t2r2e2wqlkj2hgfdsamnbvcxz
zxcv11bnmasdfghjklqwertyuiop
poi3u3ytrewqlkjhgfdsamnbvcxz
zxcv4bnm4asdfghjklqwertyuiop
poiuytrewqlkjhgfdsa5m5nbvcxz
zxcvbnmasdfghjklqwertyuiop66
poiuytrewqlkjhgfdsa7nbvcxz
zxcvbnmasdf8gh8jklqwertyuiop
poiuytrewqlkjh99gfdsamnbvcxz
zxcvbnm0a0sdfghjklqwertyuiop


最好能 又快又准确的   谢谢

reyleon

看样子是这样

awk -F '' '/[0-9]/&&/[a-zA-Z]/{delete a;for(i=1;i<=NF;i++)if($i~/[0-9]/)a[$i];if(length(a)==1)print}'

aaaa_123

回复 2# reyleon

6哥真帅..     可以限制匹配一下字母长度么  例如匹配4,17位字母内   

cjaizss

1. 
   
2. sed '/^[^0-9]*\([0-9]\)\([^0-9]*\1\)*[^0-9]*$/!d'
   

复制代码

aaaa_123

回复 4# cjaizss

帅  Thanks

Looiml

grep -P '^([a-z]*)(\d)((?1)\2)*(?1)$' a