启用screen日志

在screen的设置文件/etc/screenrc里添加一行logfile /tmp/screenlog.txt

sed -i '/logfile/d' /etc/screenrc;
echo "logfile /tmp/screenlog.txt" >> /etc/screenrc;

参数-L

screen命令有个-L参数,功能是Turn on output logging. 以后只要加上这个参数,就会记录到文件了

screen -S test -L

测试

随手执行几个命令,比如ls top,之后查看/tmp/screenlog.txt文件,发现screen输出的内容都在里面了.

tail -n 100 /tmp/screenlog.txt