warn

warn

warn LIST

Prints the value of LIST to STDERR. If the last element of LIST does not end in a newline, it appends the same file/line number text as die does-

If the output is empty and $@ already contains a value (typically from a previous eval) that value is used after appending "\t...caught" to $@ . This is useful for staying almost, but not entirely similar to die-

If $@ is empty then the string "Warning: Something's wrong" is used.

No message is printed if there is a 登录查看完整内容