2019-05-13

第三十一天.png

错误提示

(1)argument last too long

参数列表太长

模拟环境1
        创建大量文件
            mkdir test
            touch test/{1..4000000}.txt
            报错
                argument last too long
            原因
                参数列表太长
            解决
                echo test/{1..4000000}.txt|xargs touch
                    改变创建大量文件方式
模拟环境2
        删除大量文件
            ls test/* |xargs rm
            报错
                argument list too long
            原因
                参数列表太长
            解决
                find test/ -type f |xargs rm -fr

环境模拟

(2)cannot allocate memory

无法分配内存

模拟环境1
        [echo {1..500000000}.txt
模拟环境2
        touch {1..500000000}.txt

环境试验

[root 19:25 @ GYJ ~]# echo {1..500000000}.txt
-bash: xmalloc: cannot allocate 4000000008 bytes (1216512 bytes allocated)

Connection closed by foreign host.

Disconnected from remote host(遇见) at 19:25:26.

Type `help' to learn how to use Xshell prompt.
[c:\~]$ 
[root 19:27 @ GYJ ~]# touch {1..500000000}.txt
-bash: xmalloc: cannot allocate 4000000008 bytes (1216512 bytes allocated)

Connection closed by foreign host.

Disconnected from remote host(遇见) at 19:28:57.

Type `help' to learn how to use Xshell prompt.
[c:\~]$ 

直接卡出去