請問有誰知道如何每隔兩行在行尾回車并插入一個$符號？

jamesapple321

請問有誰知道如何每隔兩行在行尾回車并插入一個$符號？
10.9.222.111,
10.9.222.112,
$
10.9.222.113,
10.9.222.114,
$
10.9.222.115,
10.9.222.116,
10.9.222.21,
10.9.222.22,
10.9.222.23,
10.9.222.24,
10.9.222.25,
10.9.222.26,
10.9.222.27,
10.9.222.28,
10.9.222.29,
10.9.222.30,

例如：
10.9.222.111,
10.9.222.112,
$
10.9.222.113,
10.9.222.114,
$

我是一隻羊

1. sed 'N;s/$/\n\$/' inputfile
   

復制代碼

1. awk '1;(NR+1)%2{print "$"}' inputfile

復制代碼

zsszss0000

1. sed '2~2s/$/\n\$/' file

復制代碼

1. awk '{print;getline;print;print "$"}' file

復制代碼

LikeLx

1. sed '0~2a\

復制代碼

結(jié)尾符號怎么寫不上去

zl624867243

try：
sed '0~2a $' file0

or

awk '{if(NR%2==0){print gensub(/.*/,"&\n$","1")}else{print}}' file0

A_Traveler

awk '!(NR%2){print $0"\n$";next}1'   files

我愛你我的菜

awk '{print}{if(NR%2==0)print "\$"}' test.txt