How to determine whether PCRE is installed in Linux

In Linux, you can use the "rpm -qa pcre" command to determine whether pcre is installed; the rpm command is specially used to manage various packages. After using this command, if the version information of pcre appears in the result, it means PCRE has been installed. If no version information appears, it means PCRE is not installed.

#The operating environment of this tutorial: linux7.3 system, Dell G3 computer.

How to judge whether pcre is installed in Linux

Check whether pcre environment is installed in linux

[root@WeChat sbin]# rpm -qa pcre
pcre-8.32-17.el7.x86_64
pcre-8.32-17.el7.i686

If you see the version of pcre, it means it is installed, otherwise it is not installed

Examples are as follows:

1. Connect to the corresponding Linux host and enter the Linux command line state waiting for shell instructions to be entered.

#2. Enter the shell command on the linux command line: rpm -qa pcre.

#3. Press the "Enter" key on the keyboard to run the shell command. At this time, you will see the version of pcre, indicating that it has been installed, otherwise it has not been installed.

Related recommendations: "Linux Video Tutorial"

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