Java 执行Linux Command

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import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;


@RestController
public class ExecuteController {
    /**
     * 执行指定命令
     */
    @RequestMapping(value = "/executeMult", method = RequestMethod.GET)
    public Object executeMult(String command) throws IOException {
        if (StringUtils.isEmpty(command))
            return "Error Command ";
        String[] strings = new String[3];
        strings[0] = "/bin/sh";
        strings[1] = "-c";
        strings[2] = command;
        StringBuffer stringBuffer = new StringBuffer();
        int exitValue = -1;
        BufferedReader bufferedReader = null;
        try {
            // command process
            Process process = Runtime.getRuntime().exec(strings);
            BufferedInputStream bufferedInputStream = new BufferedInputStream(process.getInputStream());
            bufferedReader = new BufferedReader(new InputStreamReader(bufferedInputStream));
            // command log
            String line;
            while ((line = bufferedReader.readLine()) != null) {
                stringBuffer.append(line);
                stringBuffer.append(System.getProperty("line.separator"));
                System.out.println(line);
            }
            // command exit
            process.waitFor();
            exitValue = process.exitValue();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (bufferedReader != null) {
                bufferedReader.close();
            }
        }
        if (exitValue == 0) {
            return stringBuffer.toString();
        } else {
            return "command exit value(" + exitValue + ") is failed";
        }
    }
}

快速查询日志命令

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./tail.sh filename linenumber seratchText
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#字体颜色
blue_font="\E[34m\033[01m"
green_font="\033[1;32m"
yellow_font="\033[33m"
light_green_font_withbackcolor="\033[42;30m\033[01m"
light_green_font="\033[32m\033[01m"
red_font="\033[1;31m"

color_end="\033[0m"



#参数校验
if [ ! -n "$1" ] ;then
            echo -e "${blue_font} 请指定日志文件目录 ! ${color_end}"
                exit 1;
        fi

        line=$2

        if [ ! -n "$2" ] ;then
                    line=20
            fi

        if [ ! -n "$3" ] ;then
         echo  -e "${yellow_font} 执行:tail -"$line"f $1  ${color_end}"
         tail -"$line"f  $1
    
 else
          echo  -e "${yellow_font} 执行:tail -"$line"f $1 |grep "$3"  ${color_end}"

          tail -"$line"f  $1 |grep "$3"
      fi

正则表达式案例

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替换文本格式的数据为 hashmap.put(“a1”,”b1”);

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a1     b1 
23g      sdfs


正则表达式：([A-Z0-9]+)[ ]+(.*)
 
hashmap.put("$1","$2")