On minimal CentOS 6.4 installation, wget, man and telnet command utilities does not install automatically. Wget is a free network utility for linux to download files from the Web. Man is used to display the manual page for other command and also will help you to explain the functions for the commands that commonly used. The term “man” is short for manual. Telnet is a network protocol used on the Internet or local area networks. Telnet is a user command and an underlying TCP/IP protocol for accessing remote computers and very useful for troubleshooting and verify the opened ports. You will get the following warning when you use wget, man and telnet on minimal CentOS 6.4 installation.
[root@centos64 ~]# wget -bash: wget: command not found
https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-6907191851278817&output=html&h=280&adk=2256347034&adf=3420980276&pi=t.aa~a.3912215077~i.3~rp.4&w=641&fwrn=4&fwrnh=100&lmt=1678812573&num_ads=1&rafmt=1&armr=3&sem=mc&pwprc=4414944134&ad_type=text_image&format=641×280&url=https%3A%2F%2Fhostingcult.com%2Fhowto%2Fhow-to-install-wget-telnet-man-utility-on-centos-6-4%2F&fwr=0&pra=3&rh=161&rw=641&rpe=1&resp_fmts=3&wgl=1&fa=27&adsid=ChEI8LbAoAYQnZOC0LjJq-PRARI9AFTJBpOCuYndkuO4P6ujZM6NnK0d4ARyWgwJUlxnYu1DvcRVQ9y6GlEYKCsswKexaG0xmX5j-wglEf0ZLw&uach=WyJXaW5kb3dzIiwiMTAuMC4wIiwieDg2IiwiIiwiMTEwLjAuNTQ4MS4xODAiLFtdLGZhbHNlLG51bGwsIjY0IixbWyJDaHJvbWl1bSIsIjExMC4wLjU0ODEuMTgwIl0sWyJOb3QgQShCcmFuZCIsIjI0LjAuMC4wIl0sWyJHb29nbGUgQ2hyb21lIiwiMTEwLjAuNTQ4MS4xODAiXV0sZmFsc2Vd&dt=1678812571222&bpp=4&bdt=5901&idt=4&shv=r20230309&mjsv=m202303010101&ptt=9&saldr=aa&abxe=1&cookie=ID%3D9dfab9179c2fc79d-222332d832dc0028%3AT%3D1678790229%3ART%3D1678790229%3AS%3DALNI_Mb06ybb2UWE4Eq0pZNhpQs1OSsHYw&gpic=UID%3D00000becdddf6922%3AT%3D1678790229%3ART%3D1678812421%3AS%3DALNI_MbvpdQgOKdSmvpg3RDgz7PwRg71qw&prev_fmts=0x0%2C641x280&nras=3&correlator=3769928637635&frm=20&pv=1&ga_vid=1646638130.1678790224&ga_sid=1678812566&ga_hid=1273421330&ga_fc=1&u_tz=60&u_his=3&u_h=768&u_w=1366&u_ah=728&u_aw=1366&u_cd=24&u_sd=1&dmc=4&adx=307&ady=1160&biw=1349&bih=657&scr_x=0&scr_y=0&eid=44759837%2C44759926%2C44759875%2C44777877%2C31073015%2C31071756&oid=2&psts=AD37Y7s94dMbRXSz_3jYcqTgzfiY0gkVvdu2FY0nnLtJ0kJ4x-SagrIXW2kmTOiAB4UUvIsd0TT1PvxgnAt9atu8&pvsid=1610820045639366&tmod=430096599&uas=0&nvt=1&fc=1408&brdim=0%2C0%2C0%2C0%2C1366%2C0%2C1366%2C728%2C1366%2C657&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=128&bc=31&jar=2023-03-14-15&ifi=3&uci=a!3&btvi=1&fsb=1&xpc=Ez529qFDPE&p=https%3A//hostingcult.com&dtd=2570
[root@centos64 ~]# man -bash: man: command not found
[root@centos64 ~]# telnet -bash: telnet: command not found
So here are the steps to install those three useful command utilities :
[root@centos64 ~]# yum install wget man telnet -y
Full installation :
[root@centos64 ~]# yum install wget man telnet -y Loaded plugins: fastestmirror Determining fastest mirrors * base: mirrors.hostemo.com * extras: mirrors.hostemo.com * updates: mirrors.hostemo.com base | 3.7 kB 00:00 extras | 3.5 kB 00:00 updates | 3.5 kB 00:04 Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package man.x86_64 0:1.6f-32.el6 will be installed --> Processing Dependency: lzma for package: man-1.6f-32.el6.x86_64 ---> Package telnet.x86_64 1:0.17-47.el6_3.1 will be installed ---> Package wget.x86_64 0:1.12-1.8.el6 will be installed --> Running transaction check ---> Package xz-lzma-compat.x86_64 0:4.999.9-0.3.beta.20091007git.el6 will be installed --> Processing Dependency: xz = 4.999.9-0.3.beta.20091007git.el6 for package: xz-lzma-compat-4.999.9-0.3.beta.20091007git.el6.x86_64 --> Running transaction check ---> Package xz.x86_64 0:4.999.9-0.3.beta.20091007git.el6 will be installed --> Finished Dependency Resolution Dependencies Resolved ==================================================================================================== Package Arch Version Repository Size ==================================================================================================== Installing: man x86_64 1.6f-32.el6 base 263 k telnet x86_64 1:0.17-47.el6_3.1 base 58 k wget x86_64 1.12-1.8.el6 base 482 k Installing for dependencies: xz x86_64 4.999.9-0.3.beta.20091007git.el6 base 137 k xz-lzma-compat x86_64 4.999.9-0.3.beta.20091007git.el6 base 16 k Transaction Summary ==================================================================================================== Install 5 Package(s) Total download size: 955 k Installed size: 2.8 M Downloading Packages: (1/5): man-1.6f-32.el6.x86_64.rpm | 263 kB 00:05 (2/5): telnet-0.17-47.el6_3.1.x86_64.rpm | 58 kB 00:00 (3/5): wget-1.12-1.8.el6.x86_64.rpm | 482 kB 00:09 (4/5): xz-4.999.9-0.3.beta.20091007git.el6.x86_64.rpm | 137 kB 00:04 (5/5): xz-lzma-compat-4.999.9-0.3.beta.20091007git.el6.x86_64.rpm | 16 kB 00:00 ---------------------------------------------------------------------------------------------------- Total 42 kB/s | 955 kB 00:22 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Installing : xz-4.999.9-0.3.beta.20091007git.el6.x86_64 1/5 Installing : xz-lzma-compat-4.999.9-0.3.beta.20091007git.el6.x86_64 2/5 Installing : man-1.6f-32.el6.x86_64 3/5 Installing : 1:telnet-0.17-47.el6_3.1.x86_64 4/5 Installing : wget-1.12-1.8.el6.x86_64 5/5 Verifying : xz-lzma-compat-4.999.9-0.3.beta.20091007git.el6.x86_64 1/5 Verifying : man-1.6f-32.el6.x86_64 2/5 Verifying : xz-4.999.9-0.3.beta.20091007git.el6.x86_64 3/5 Verifying : wget-1.12-1.8.el6.x86_64 4/5 Verifying : 1:telnet-0.17-47.el6_3.1.x86_64 5/5 Installed: man.x86_64 0:1.6f-32.el6 telnet.x86_64 1:0.17-47.el6_3.1 wget.x86_64 0:1.12-1.8.el6 Dependency Installed: xz.x86_64 0:4.999.9-0.3.beta.20091007git.el6 xz-lzma-compat.x86_64 0:4.999.9-0.3.beta.20091007git.el6 Complete!