請問在一個命令上加什麼參數能夠實現下面命令的內容在同一行輸出。 echo "zhaokang";echo "zhaokang"

請問在一個命令上加什麼參數能夠實現下面命令的內容在同一行輸出。 echo "zhaokang";echo "zhaokang"

[root@zhaokang test]# echo "zhaokang";echo "zhaokang"
zhaokang
zhaokang

 

解答：

[root@zhaokang test]# echo -n "zhaokang";echo "zhaokang"
zhaokangzhaokang

 

說明：此題考察echo的-n 參數。echo的命令常常用，須要總結以下：

echo

　　-n do not output the trailing newline

　　-e enable interpretation of backslash escapes

加-n 是取消換行符

加-e參數是可使用轉義字符

[root@zhaokang test]# echo -ne "zhaokang\t";echo "zhaokang"
zhaokang        zhaokang

 

[root@zhaokang test]# echo -e "zhaokang\tguobaoyan"
zhaokang        guobaoyan

 

[root@zhaokang test]# echo -e "zhaokang\nguobaoyan"zhaokangguobaoyan