38 lines
694 B
Markdown
38 lines
694 B
Markdown
# awk 使用
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[TOC]
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参考
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https://blog.csdn.net/daily886/article/details/85156557
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## 基本规则
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> awk [-F|-f|-v] ‘BEGIN{} //{command1; command2} END{}’ file
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常用形式:
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> Awk -F '' '//{command}' file
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- -F 'char': 确定分割符，默认分隔符是空格
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- 常用变脸$0 $1 $2 ... 0代表正行，1代表第一个切片
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- 格式化输出 awk '/pattern/ {printf "echo 1st %s", $1}' file
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- 匹配规则在//之间
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## 常用
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### awk 中执行shell命令
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对于 某行数据 Version = "v1.2.3"
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自动打标签并推送
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> awk -F '"' '/Version/ {print $2;system("git tag "$2);system("git push origin "$2)}' onebd.go
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注意：在makefile中使用时$需用$$代替
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