WARNING: apt does not have a stable CLI interface. Use with caution in scripts. Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)). gpg: 冲突的指令 E: 无法定位软件包 lsb-releasecurl E: 无法定位软件包 https://raw.githubusercontent.com/ros/rosdistro/master
时间: 2024-04-29 09:19:08 浏览: 420
这是一个错误信息,看起来是在使用 apt 安装 lsb-releasecurl 和 https://raw.githubusercontent.com/ros/rosdistro/master 时出现了问题。可能是因为软件包源配置不正确或网络连接问题导致的。建议检查一下软件包源配置是否正确,并且确保网络连接稳定。如果问题仍然存在,可以尝试使用其他的软件包源或手动安装这些软件包。
相关问题
I want to delete the files which are created earlier than a particular time in a directory. How can I do this in shell scripts?
In shell scripts, you can use the `find` command along with the `-mtime` option to identify files created earlier than a specific time. Here's an example script that deletes files older than a certain number of days:
```shell
#!/bin/bash
directory="/path/to/directory"
days=7
# Find files older than the specified number of days and delete them
find "$directory" -type f -mtime +"$days" -exec rm {} \;
```
In this script, replace `/path/to/directory` with the actual directory path you want to search in. The `days` variable represents the number of days ago from which you want to delete files. Adjust it according to your needs.
The `find` command searches for files (`-type f`) in the specified directory and its subdirectories, which were modified more than `$days` days ago (`-mtime +"$days"`). The `-exec` option is used to execute the `rm` command on each found file (`{}` represents the file path) to delete it.
Please exercise caution while running scripts that involve file deletion, as it can permanently remove data. It's recommended to test the script on a small set of files or take appropriate backup measures before using it in production.
postgres1 is not in the sudoers file. This incident will be reported.
The error message "postgres1 is not in the sudoers file" occurs when a user attempts to execute a command as the root or superuser, usually through the `sudo` command in Linux or Unix-based systems, using the `postgres1` user account. `sudoers` is a configuration file that defines which users are allowed to use `sudo` and under what conditions.
In this case, it means that the `postgres1` user does not have the necessary permissions to run commands with administrative privileges by default. To resolve this issue, you need to:
1. Edit the `sudoers` file: Use an editor like `visudo` (or `sudo visudo`) to open the `sudoers` file, typically located at `/etc/sudoers`.
2. Add or modify the entry for `postgres1`: Add a line that grants sudo access to the `postgres1` user, following the syntax rules in the `sudoers` file. For example:
```
postgres1 ALL=(ALL) NOPASSWD: ALL
```
This line allows `postgres1` to run any command without needing a password.
3. Save and exit the editor: Remember to save your changes and close the editor without forgetting to confirm the permissions.
4. Test the new permission: After updating the `sudoers` file, try running a command with `sudo` again, and if everything is set up correctly, you should no longer receive the error message.
Please note that making changes to the `sudoers` file requires caution as incorrect permissions can lead to security vulnerabilities. Make sure to test and understand the implications before applying any changes.
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