Graphical tutorial on how to view YUM’s installation directory code on Linux

LinuxHow to check the installation path of the package installed using YUM? Before clarifying this issue, let's first understand YUM. YUM (full name Yellow dog Updater, Modified) is a Shell front-end package manager in Fedora, RedHat and CentOS. Based on RPM package management, it can automatically download and install RPM packages from designated servers. It can automatically handle dependencies and install all dependent software packages at once, avoiding the trouble of manual installation (searching for resources, downloading; placing them in the designated directory for installation). ; Process dependencies and download dependency packages for installation). Therefore, installing with yum is essentially installing with RPM, so the instructions for RPM to query information are available.

If used RPM installs some packages. Generally speaking, the default installation path of RPM is as follows:

#Directory	Contents of Directory
##/etc	##Some configuration Directory of file , such as /etc/init.d/mysql
/usr/bin	Some executable files
##/usr/lib	Dynamic functions used by some programs Library
##/usr/share/doc	##Some basic software manuals and Help documentation
#/usr/share/man	Some man pageFile

##Taking the installation of MySQL as an example, we installed MySQL using RPM The two packages, in fact, rpm has two parameters -l and -c that can help us check the specific installation path.

#-l Display the file list in the package

-c Display the configuration file list

## Then we can use "rpm -ql Package name" to view the specific installation path. As follows:

 

 

 

[root@DB-Server ~]# rpm -qa | grep -i mysql
MySQL-server-advanced-5.6.20-1.rhel5
MySQL-client-advanced-5.6.20-1.rhel5
[root@DB-Server ~]# rpm -ql MySQL-client-advanced-5.6.20-1.rhel5
/usr/bin/msql2mysql
/usr/bin/mysql
/usr/bin/mysql_config_editor
/usr/bin/mysql_find_rows
/usr/bin/mysql_waitpid
/usr/bin/mysqlaccess
/usr/bin/mysqlaccess.conf
/usr/bin/mysqladmin
/usr/bin/mysqlbinlog
/usr/bin/mysqlcheck
/usr/bin/mysqldump
/usr/bin/mysqlimport
/usr/bin/mysqlshow
/usr/bin/mysqlslap
/usr/share/man/man1/msql2mysql.1.gz
/usr/share/man/man1/mysql.1.gz
/usr/share/man/man1/mysql_config_editor.1.gz
/usr/share/man/man1/mysql_find_rows.1.gz
/usr/share/man/man1/mysql_waitpid.1.gz
/usr/share/man/man1/mysqlaccess.1.gz
/usr/share/man/man1/mysqladmin.1.gz
/usr/share/man/man1/mysqlbinlog.1.gz
/usr/share/man/man1/mysqlcheck.1.gz
/usr/share/man/man1/mysqldump.1.gz
/usr/share/man/man1/mysqlimport.1.gz
/usr/share/man/man1/mysqlshow.1.gz
/usr/share/man/man1/mysqlslap.1.gz
 
 
[root@DB-Server tmp]# rpm -ql MySQL-server-advanced-5.6.20-1.rhel5
/etc/init.d/mysql
/etc/logrotate.d/mysql
/etc/my.cnf
/usr/bin/innochecksum
/usr/bin/my_print_defaults
/usr/bin/myisam_ftdump
/usr/bin/myisamchk
/usr/bin/myisamlog
/usr/bin/myisampack
/usr/bin/mysql_convert_table_format
/usr/bin/mysql_fix_extensions
/usr/bin/mysql_install_db
/usr/bin/mysql_plugin
/usr/bin/mysql_secure_installation
/usr/bin/mysql_tzinfo_to_sql
/usr/bin/mysql_upgrade
/usr/bin/mysql_zap
/usr/bin/mysqlbug
/usr/bin/mysqld_multi
/usr/bin/mysqld_safe
/usr/bin/mysqldumpslow
/usr/bin/mysqlhotcopy
/usr/bin/mysqltest
.....................................................

 

 

[root@DB-Server ~]# rpm -qc MySQL-server-advanced-5.6.20-1.rhel5
/etc/logrotate.d/mysql
/etc/my.cnf
[root@DB-Server ~]#

 

In the official MySQL documentation, you can see the installation directory where the RPM package is located. We used rpm -ql to compare and verify, and it was basically OK. But the strange thing is that in the above version, I did not find /etc/my.cnf, but /usr/my.cnf

##MySQL 5.6

##Directory	Contents of Directory
##/usr/bin	Client programs and scripts
/usr/sbin	The mysqld server
/var/lib/mysql	Log files, databases
/var/lib/mysql-files	Value of secure_file_priv
/usr/share/info	MySQL manual in Info format
/usr/share/man	Unix manual pages
/usr/include/mysql	Include (header) files
/usr/lib/mysql	Libraries
/usr/share/mysql	Miscellaneous support files, including error messages, character set files, sample configuration files, SQL for database installation
/usr/share/sql-bench	Benchmarks

 

 

MySQL 5.7

Files or Resources	Location
Client programs and scripts	/usr/bin
mysqld server	/usr/sbin
Configuration file	/etc/my.cnf
Data directory	/var/lib/mysql
Error log file	For RHEL, Oracle Linux, CentOS or Fedora platforms: /var/log/mysqld.log For SLES: /var/log/mysql/mysqld.log
Value of secure_file_priv	/var/lib/mysql-files
System V init script	For RHEL, Oracle Linux, CentOS or Fedora platforms: /etc/init.d/mysqld For SLES: /etc/init.d/mysql
Systemd service	For RHEL, Oracle Linux, CentOS or Fedora platforms: mysqld For SLES: mysql
Pid file	/var/run/mysql/mysqld.pid
Socket	/var/lib/mysql/mysql.sock
Keyring directory	/var/lib/mysql-keyring
Unix manual pages	/usr/share/man
Include (header) files	/usr/include/mysql
Libraries	/usr/lib/mysql
Miscellaneous support files (for example, error messages, and character set files)	/usr/share/mysql

##Another test server, using yum to install mysql-community- server-5.7.18, the test and verification found that it is normal again. I don’t know the details yet.

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