每隔4行在该行后面添加内容

elaine2017

数据格式如下：
@E00548:177:HKH53CCXY:4:1111:21785:2382
AACCCTAACCCTAACCCTAACCCTAACCCTAACCCTA
+
JJJJJJJJJJJJJJJJFFJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ
@E00548:177:HKH53CCXY:4:1111:21785:2389
AACCCTAACCCTAACCCTAACCCTAACCCTAACCCTA
+
JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ


就是我想在每个以@开头的那一行的末尾添加一个 "/1"，如上面的就变成：
@E00548:177:HKH53CCXY:4:1111:21785:2382/1
AACCCTAACCCTAACCCTAACCCTAACCCTAACCCTA
+
JJJJJJJJJJJJJJJJFFJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ
@E00548:177:HKH53CCXY:4:1111:21785:2389/1
AACCCTAACCCTAACCCTAACCCTAACCCTAACCCTA
+
JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ



请问这个应该怎么弄啊

o枫叶o飘零

1. sed '/^@/s/$/\/1/g'

复制代码

christmas1102

1. awk '/@/{print $0"\0571";next}1' file

复制代码

1. awk '/@/{sub(/$/,"/1")}1' file

复制代码

reyleon

1. awk '{print /^@/?$0"/1":$0}'

复制代码

chengchow

sed 's/^@.*/&\/1/' file

wh7211

回复 1# elaine2017

1. awk '/^@/{sub("$","/1")}1' file

复制代码

elaine2017

回复 6# wh7211

多谢

elaine2017

回复 3# christmas1102

多谢