shell 上下两行合并成一行

系列文章目录

shell

---

---

前言

sed

---

一、shell上下两行

1.file

• cat file.txt

host1
192.168.0.1
host2
192.168.0.2
host3
192.168.0.3
host4
192.168.0.4
host5
192.168.0.5

2.sed

• sed 'N;s/\n/ :/' file

# cat file.txt | sed 'N;s/\n/ :/'
host1 :192.168.0.1
host2 :192.168.0.2
host3 :192.168.0.3
host4 :192.168.0.4
host5 :192.168.0.5

二、sed多行

• N (next)多行操作命令，文本前后两行合并为一行

# cat file.txt
host11
192.168.0.1
host222
192.168.0.2
host3
192.168.0.3
host44
192.168.0.4
host555
192.168.0.5

# sed 'N;s/\n/ :/' file.txt
host11 :192.168.0.1
host222 :192.168.0.2
host3 :192.168.0.3
host44 :192.168.0.4
host555 :192.168.0.5

• 使用“制表符”\t对齐边缘

# sed 'N;s/\n/   \t/' file.txt
host11   	192.168.0.1
host222   	192.168.0.2
host3   	192.168.0.3
host44   	192.168.0.4
host555   	192.168.0.5

---

参考

1. shell两行合并成一行
2. sed 多行命令
3. sed s 替换脚本命令
4. 使用“制表符”对齐边缘