bash .bashrc 命令脚本中的 Term::ReadKey
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Term::ReadKey in .bashrc command script
提问by Moritz Petersen
I'm writing a simple motd-script in perl, that parses messages from specific websites and displays them in the center of the terminal screen.
我正在用 perl 编写一个简单的 motd 脚本，它解析来自特定网站的消息并将它们显示在终端屏幕的中央。
To get the width of the terminal I use the CPAN module Term::ReadKey.
Now I am calling this script with
为了获得终端的宽度，我使用了 CPAN 模块 Term::ReadKey。
现在我正在调用这个脚本
command /path/to/script
from my .bashrcto display it on login and opening a terminal.
从我的.bashrc登录并打开终端时显示它。
My script works fine when called while I'm logged in via perl or using
当我通过 perl 登录或使用
source .bashrc
but on the initial opening of a terminal (which is the actual purpose of the script) I'm getting this Error message:
但是在终端的初始打开（这是脚本的实际目的）时，我收到此错误消息：
Can't locate Term/ReadKey.pm in @INC (you may need to install the Term::ReadKey module) (@INC contains: /usr/lib/perl5/site_perl /usr/share/perl5/site_perl /usr/lib/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib/perl5/core_perl /usr/share/perl5/core_perl .) at /path/to/perl-motd.pl line 6.
BEGIN failed--compilation aborted at /path/to/perl-motd.pl line 6.
Line 6 of the script is
脚本的第 6 行是
use Term::ReadKey;
回答by glenn Hymanman
First find where that module is installed: locate Term/ReadKey.pm
首先找到该模块的安装位置： locate Term/ReadKey.pm
If it's not found, you have to install it (may require sudo): cpan Term::ReadKey
如果未找到，则必须安装它（可能需要 sudo）： cpan Term::ReadKey
If it is already installed, you have to tell Perl where it is:
如果它已经安装，你必须告诉 Perl 它在哪里：
use lib '/path/to'; # assuming it's installed as "/path/to/Term/ReadKey.pm"
use Term::ReadKey;
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