I have installed the zlib1g and zlib1g-dev by this commands

sudo apt update
sudo apt upgrade
sudo apt install build-essential libpcre3 libpcre3-dev libssl-dev 

but after I am trying to run the command but showing 'zlib1g: command not found'

zlib1g zlib1g-dev

I checked whether the zlib1g is installed or not and its showing it is already installed the latest version

plz help anyone

CodePudding user response：

zlib1g is not a linux command/executable binary. zlib1g is a library and zlib1g-dev are headers for c/c . You need to add linker flag -lz when compiling so it will include zlib.

CodePudding user response：

I have installed the zlib1g... sudo apt install build-essential libpcre3 libpcre3-dev libssl-dev

1. You didn't installed zlib1g. zlib1g is called zlib1g not libpcre or libssl, installed with sudo apt install zlib1g, or with zlib1g-dev if you want to develop something with zlib1g-dev.
2. zlib1g is a library not an executable, which means it is used to put there, waiting for other executable or library to call it, not waiting for calling from a terminal command. You should detect an library by writing a program that #includes it or using a package manager command.