linux - 在文件中的匹配字符串(模式 1)上方打印特定单词直到匹配字符串(模式 2)

Question

object Host "os.google.com" {
import "windows"
address = "linux.google.com"
groups = ["linux"]
}

object Host "mango.google.com" {
import "windows"
address = "mango.google.com"
groups = ["linux"]

assign where "mango" in Hostgroups
}

我想打印匹配字符串上方的行，直到文件中的特定模式

例如:

我想打印 assign where "mango"in Hostgroups 上面的行，直到文件中的这个模式 {

期望的输出:

object Host "mango.google.com" {
import "windows"
address = "mango.google.com"
groups = ["linux"]

assign where "mango" in Hostgroups

Answer 1

试试这个 awk 脚本

script.awk

/{/,/}/ { #define record range from { to }
    if ($0 ~ "{") rec = $0; # if record opening reset rec variable with current line
    else rec = rec "\n" $0; # else accumulate the current line in rec
    if ($0 ~ /assign where "mango" in Hostgroups/) { # if found exit pattern in current line
        print rec; # print the rec
        exit;      # terminate
    }
}

处决:

awk -f script.awk input.txt

输出:

object Host "mango.google.com" {
import "windows"
address = "mango.google.com"
groups = ["linux"]

assign where "mango" in Hostgroups