linux sh 读取文件内容,if判读语句,变量var打印
#!/bin/bash #1 读取文件 并显示 cat state.txt | while read line do echo $line done #2 读取文件 并显示 cat state.txt | while read line; do echo $line; done #3 读取一个文件内容到一个变量中 var=$(cat state.txt) echo $var #4 根据变量进行判读 if [ $var==0 ]; then echo "no run" elif [ $var==1 ]; then echo "run" else echo "error" fi
运行python的时候将程序PID写入文件,以方便kill程序。
import os def writePid(): pid = str(os.getpid()) f = open('athena.pid', 'w') f.write(pid) f.close()
sh 字符串匹配
https://blog.csdn.net/xy913741894/article/details/74355576