使用shell脚本进行搜索和替换

Question

我需要一个shell脚本来查找和替换类似的文本:

For each line in a file
  find equation mark "="
  remove everything up to the equation mark on that line and replace it with the string cuts[Counter] where Counter counts how many times such substitutions have been made.

开始使用这样的脚本可以帮助我吗？

Answer 1

假设你的意思是"达到第一个等式标记......"并且你想保留=,这应该这样做:

awk '{c += sub(/[^=]+=/,"cuts["c+0"]=") }1' file