今天写脚本遇到Can't use string ("bond2 Link encap:InfiniBand ") as a symbol ref while "strict refs" in use at test.pl line 的错误
google了一下,发现stackoverflow有这样的错误,其中有一个是缺少一个分号导致的
例如:
open (FILE, "ifconfig | "); while (<FILE>) { my $line = $_; print $line sleep 1; }
运行之后是这个错误:
Ifconfig is obsolete! For replacement check ip.
Can't use string ("bond2 Link encap:InfiniBand ") as a symbol ref while "strict refs" in use at test.pl line 15, <FILE> line 1
我仔细检查我自己的代码,并未发现缺少分号,运行之后依然报错
我的代码是:就是运行data命令,把结果写到data.log中
#!/usr/bin/perl use strict; sub TIME { my $time=readpipe("date"); return "$time "; } open(TIME,">date.log") or die "$! "; print TIME &TIME; close(TIME);
运行之后是这个样子
Can't use string (XXXXX) as a symbol ref while "strict refs" in use at test.pl line 8.
并非缺少分号,我又仔细看了,发现函数名和文件句柄名都是TIME,就把文件句柄名改成别的,然后脚本就可以正常运行
原来perl 文件句柄和函数不能使用相同的名字,以后再遇到类似的错误,注意检查一下文件名和分号