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Віталій Карпенко
Asked:2020-04-07 16:38:22 +0800 CST2020-04-07 16:38:22 +0800 CST

运行过程的交互式输入

  • 772

我制作了一个简单的 shell 脚本来对所有已安装的软件包进行排序并删除不需要的软件包：

#!/bin/sh

pkgs=`dpkg --get-selections | awk '{ print $1 }' | cut -f1 -d :`

echo "$pkgs" | while IFS='' read -r line || [ -n "$line" ]; do
    apt purge "$line"
done

但是当 shell 解释器调用apt purge "$line"apt 时，它会停止并显示“Abort”消息。由于缺少交互式输入：

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  sysvinit-core
The following packages will be REMOVED:
  acl* systemd* systemd-sysv*
The following NEW packages will be installed:
  sysvinit-core
0 upgraded, 1 newly installed, 3 to remove and 0 not upgraded.
Need to get 132 kB of archives.
After this operation, 12.2 MB disk space will be freed.
Do you want to continue? [Y/n] Abort.

如何apt purge "$line"在执行时将输入传递给启动时的子进程？

linux

1 个回答

  1. Best Answer

    最简单的选择是摆脱stdin的重新映射（特别是在由于使用管道 - 启动子 shell 时发生|）。

    即，像这样：

    for line in $(dpkg --get-selections | cut -f 1); do
  apt purge $line
done
    • 2

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