Question

我有几个文件（yml，tf，xml），需要为它找到一个字符串，即var1，然后用foo2插入新行，其余部分保持不变。例子

variable "my_vars" {
  type = "map"

  default = {
    var1 = "10.48.225.160/28"
    var2 = "10.48.225.160/28"
    var3 = "10.48.225.160/28"
    var4 = "10.48.225.160/28"
  }
}

我尝试了下面的代码，但需要进行适当的编辑。

import sys
import string

def find(substr, replstr, infile):
    f = open(infile,"rw")
    lines = f.readlines()
    for i in range(len(lines)):
        if substr in lines[i]:
            j = string.replace(lines[i], substr, replstr)
            lines.insert(i + 1, j)
    print "\n".join(lines)

old_env = sys.argv[1]
new_env = sys.argv[2]
file = sys.argv[3]

find(old_env, new_env, file)

Answer 1

import sys
import string

def find(substr, replstr, infile):
    f = open(infile,"r")
    lines = f.readlines()

    for i in range(len(lines)):
        if substr in lines[i]:
            j = string.replace(lines[i], substr, replstr)
            lines.insert(i + 1, j)
    print "".join(lines)
    f.close()

    f = open(infile,"w")
    k = "".join(lines)
    f.writelines(k)
    f.close()

old_env = sys.argv[1]
new_env = sys.argv[2]
file = sys.argv[3]

find(old_env, new_env, file)

一个警告是文件的最后一行有一个匹配项，迭代器会错过这一点。

查找与表达式匹配的行，复制整行，插入新行并替换表达式

1 个答案: