


Linux cannot execute configure because it lacks dependent libraries, which can be solved by reinstalling new libraries. Solution: 1. Use the "yum install -y PCRE" statement to install the pcre library. pcre is a lightweight perl function library; 2. Use the "yum install -y pcre-devel" statement to install the "pcre-devel" library. Can.
#The operating environment of this tutorial: linux7.3 system, Dell G3 computer.
What to do if Linux cannot execute configure
In Linux, the most likely reason for invalid commands is the lack of dependent libraries, so if a command is invalid, you can try to reinstall a new library
I encountered an error when using configure, prompting that the pcre library was missing. After installing the pcre and pcre-devel libraries, the compilation was normal.
1. Install the pcre library
##2. Install the pcre-devel library
Extended knowledge:
PCRE (Perl Compatible Regular Expressions) is a lightweight Perl function library, including perl Compatible regular expression library. It is much smaller than regular expression libraries like Boost. PCRE is very easy to use and very powerful. Its performance exceeds the POSIX regular expression library and some classic regular expression libraries. The 'configure' script has a large number of command line options. These options may change for different packages, but many basic options will not change. Bring '--help' Options Execute the 'configure' script to see all the options available. Although many options are rarely used, it is beneficial to know that they exist when you configure a package for special needs. The following are A brief introduction to each option: --cache-file=FILE 'configure' will test the existing features (or bugs!) on your system. To speed up subsequent operations Configuration, test results will be stored in a cache file. When each sub-tree of configure has a complex source tree of 'configure' scripts, the existence of a good cache file will be of great help.--helpOutput help information. Even experienced users occasionally need to use the '--help' option, because a complex project may contain additional options. For example, GCC The 'configure' script in the package contains options that allow you to control whether to generate and use the GNU assembler in GCC. --no-createA major one in 'configure' The function will produce an output file. This option prevents 'configure' from generating this file. You can think of this as a dry run, although the cache is still overwritten.Recommended learning:The above is the detailed content of What to do if Linux cannot execute configure. For more information, please follow other related articles on the PHP Chinese website!

The five core components of the Linux operating system are: 1. Kernel, 2. System libraries, 3. System tools, 4. System services, 5. File system. These components work together to ensure the stable and efficient operation of the system, and together form a powerful and flexible operating system.

The five core elements of Linux are: 1. Kernel, 2. Command line interface, 3. File system, 4. Package management, 5. Community and open source. Together, these elements define the nature and functionality of Linux.

Linux user management and security can be achieved through the following steps: 1. Create users and groups, using commands such as sudouseradd-m-gdevelopers-s/bin/bashjohn. 2. Bulkly create users and set password policies, using the for loop and chpasswd commands. 3. Check and fix common errors, home directory and shell settings. 4. Implement best practices such as strong cryptographic policies, regular audits and the principle of minimum authority. 5. Optimize performance, use sudo and adjust PAM module configuration. Through these methods, users can be effectively managed and system security can be improved.

The core operations of Linux file system and process management include file system management and process control. 1) File system operations include creating, deleting, copying and moving files or directories, using commands such as mkdir, rmdir, cp and mv. 2) Process management involves starting, monitoring and killing processes, using commands such as ./my_script.sh&, top and kill.

Shell scripts are powerful tools for automated execution of commands in Linux systems. 1) The shell script executes commands line by line through the interpreter to process variable substitution and conditional judgment. 2) The basic usage includes backup operations, such as using the tar command to back up the directory. 3) Advanced usage involves the use of functions and case statements to manage services. 4) Debugging skills include using set-x to enable debugging mode and set-e to exit when the command fails. 5) Performance optimization is recommended to avoid subshells, use arrays and optimization loops.

Linux is a Unix-based multi-user, multi-tasking operating system that emphasizes simplicity, modularity and openness. Its core functions include: file system: organized in a tree structure, supports multiple file systems such as ext4, XFS, Btrfs, and use df-T to view file system types. Process management: View the process through the ps command, manage the process using PID, involving priority settings and signal processing. Network configuration: Flexible setting of IP addresses and managing network services, and use sudoipaddradd to configure IP. These features are applied in real-life operations through basic commands and advanced script automation, improving efficiency and reducing errors.

The methods to enter Linux maintenance mode include: 1. Edit the GRUB configuration file, add "single" or "1" parameters and update the GRUB configuration; 2. Edit the startup parameters in the GRUB menu, add "single" or "1". Exit maintenance mode only requires restarting the system. With these steps, you can quickly enter maintenance mode when needed and exit safely, ensuring system stability and security.

The core components of Linux include kernel, shell, file system, process management and memory management. 1) Kernel management system resources, 2) shell provides user interaction interface, 3) file system supports multiple formats, 4) Process management is implemented through system calls such as fork, and 5) memory management uses virtual memory technology.


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