vsftpd: 533 could not create file
问题：成功启动vsftpd服务system start vsftpd.service后，FTP客户端传输文件到服务器失败，返回533 could not create file
解决：setsebool -P ftpd_full_access=true //-P (persistent) 表示reboot后设置永久有效
Failed to Install Redhat 7: Dracut-Initqueue Timeout
1 | dracut:/# cd /dev |
找到你的U盘驱动器名称，例如: /dev/sdd1
1 | dracut:/# reboot |
重启后等到install页面时，按e进去启动介质编辑页面。
把：inst.stage2=hd:LABEL=CentOS\x207\x20x86_64.check quiet
改为：inst.stage2=hd:/dev/sdd1 quiet
最后按Ctrl+x保存重启就好了。
Umask
Update: Synopsys Computer Platforms
| Foundation | ROs | Linux O/S Versions | Windows Platform |
|---|---|---|---|
| V | 2024.03 | CentOS: 7.3+ RHEL: 7.3+; 8+ SLES: 12-SP5+; 15-SP2+ Rocky Linux: 8.4+ AlmaLinux: 8.4+ | Windows: 10; 11 Windows Server: 2016; 2019; 2022 |
| 2023.12 | |||
| 2023.09 | |||
| U | 2023.06 | CentOS: 7.3+ RHEL: 7.3+; 8+ SLES: 12-SP4+; 15+ Rocky Linux: 8.4+ AlmaLinux: 8.4+ | Windows: 10; 11 Windows Server: 2016; 2019; 2022 |
| 2023.03 | |||
| 2022.12 | |||
| T | 2022.09 | CentOS: 7.3+ RHEL: 7.3+; 8+ SLES: 12-SP4+; 15+ | Windows 10 Windows Server 2016 Windows Server 2019 |
| 2022.06 | |||
| 2022.03 | |||
| S | 2021.12 | CentOS: 7.3+; 8+ RHEL: 7.3+; 8+ SLES: 12-SP4+; 15+ | Windows 10 Windows Server 2016 |
| 2021.09 | |||
| 2021.06 | |||
| R | 2021.03 | RHEL 6.6+, 7.x, 8+ CentOS 6.6+, 7.1.1503+, 8+ SLES 12+, 15+ | Windows 7, 10 Windows Server 2016 |
| 2020.12 | |||
| 2020.09 | |||
| Q | 2020.06 | RHEL 6.6+, 7.x, 8+ CentOS 6.6+, 7.1.1503+, 8+ SLES 12+, 15+ | Windows 7, 10 Windows Server 2008 R2, 2016 |
| 2020.03 | |||
| 2019.12 | |||
| P | 2019.09 | RHEL 6.6+, 7.x CentOS 6.6+, 7.x SLES 11.4+ and 12.x | Windows 7, 10 Windows Server 2008 R2, 2016 |
| 2019.06 | |||
| 2019.03 | |||
| O | 2018.12 | RHEL 6.6+, 7.x CentOS 6.6+, 7.x SLES 11.4 and 12.x | Windows 7, 10 Windows Server 2008 R2, 2016 |
| 2018.09 | |||
| 2018.06 | |||
| N | 2018.03 | RHEL 6.6+, 7.x SLES 11.x and 12.x | Windows 7, 8, 10 |
| 2017.12 | |||
| 2017.09 | |||
| M | 2017.06 | RHEL 6.6+, 7.x SLES 11.x and 12.x | Windows 7, 8, 10 |
| 2017.03 | |||
| 2016.12 |
Synopsys Synchronized Release Model (SRM)
The Synopsys Synchronized Release Model is a schedule-driven release model.
- Releases are at fixed-dates known as Release Opportunities (RO)
- There are four ROs/year for Feature Releases
- There are eight ROs/year for Service Pack Releases
- Individual products define their release frequency
- All product releases are developed and tested on a defined set of common platform configuration and common code baseline – referred to as Foundation.
A Foundation can change every 9 months. Operating System changes are typically scheduled every 36 months to keep up with market demand and vendor releases. Synopsys typically builds on a single operating system baseline version for each SRM Foundation.
Chop and Chomp
Perl Functions of chop() and chomp()
chop($abc); deletes the last character of $abc.chomp($xyz); deletes the “new line” character at the end of $xyz if it has.
Often the usage of chomp is like this:chomp($input = <STDIN>); which equals to $input = <STDIN>; chomp($input);
Calibre Platform Support Overview and Roadmap - Updated 2022.1
Updated: 24 Jan 2022
Linux Operating System Support
The Calibre toolset is supported for use with the Linux® operating system systems supplied by Red Hat, CentOS, and SUSE. In general, any “Tier 1” 64-bit x86 hardware supported by those providers is supported for use with the Calibre toolset. There are two x86-64 processor products supplied by different vendors, AMD and Intel, and the Calibre toolset is supported on computers based on either of these processors. The correct software must be loaded on a particular hardware platform to use Calibre, and the supported OS versions, service packs or updates are listed below. Linux IBM Power and ARM distributions are not supported by Calibre.
Vim: Open Files
:e filename Opens the file in the vim editor.:new filename Opens the file in horizontal split mode.:vert new filename Opens the file in vertical split mode.:tabnew filename Opens the file in a new tab.