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当前尝试编写脚本以显示用户登录和注销网络。当前的代码如下:Bash Shell脚本无限循环登录脚本
echo "The current users are:"
who | awk '{print $1}' | sort > tempfile1
cp tempfile1 tempfile2
more tempfile1
while true
do
who | awk '{print $1}' | sort > temp2
cmp -s tempfile1 tempfile2
case "$?" in
0)
echo "No user has logged in/out in the last 3 seconds."
;;
1)
user=`comm -23 tempfile1 tempfile2`
file=`grep $user tempfile1 tempfile2 | cut -c 1-5`
[ $file == "tempfile1" ]
echo "User "$user" has logged out."
[ $file == "tempfile2" ];
echo "User "$user" has logged in."
;;
esac
rm tempfile1
mv tempfile2 tempfile1
sleep 3
done
运行脚本我得到如下:
The current users are:
No user has logged in/out in the last 3 seconds.
mv: cannot stat ‘tempfile2’: No such file or directory
rm: cannot remove ‘tempfile1’: No such file or directory
mv: cannot stat ‘tempfile2’: No such file or directory
我相当肯定有这个代码中的语法问题的地方,但我是个盲人。与其他相似的这种脚本类似的例子无济于事。如果有人能帮忙指出我是多么的白痴,那将是超级有用的。干杯。
我血腥的知道,我犯了一个愚蠢的错误哈哈。感谢您指出。 – JJ1