Installing libtk8.5.so and libtcl for linux
 

How can i install libtk8.5.so and libtcl in linux?
What are the commands for this?

That wholly depends on your Linux distribution and what tools it provides to install additional packages.
Furthermore 8.5 of tcl/tk is already quite out-of-date, current major version is 8.6 (and minor is 8.6.9). See i.e. www.tcl.tk/software/tcltk/bindist.html

i am using RHEL 7.1.

@sakshi_1 : Welcome to LQ.

tcl, tk ... a normal OS setup : # yum install tcl tk
Provides /usr/lib64/{libtcl8.5.so, libtk8.5.so}, /usr/bin/{tclsh, wish}, version 8.5.13 .

RHEL 7 : The current version is 7.6 . I.e. `7.1´ is an old unsafe version.
No Redhat subscription? / license? → Migrate the repo to the free version "Redhat" CentOS 7 https://www.google.com/webhp?hl=all&...rhel+to+centos

Packages http://mirror.centos.org/centos/7.6....6_64/Packages/
( tcl-8.5.13-8.el7.x86_64, tk-8.5.13-6.el7.x86_64, etc. etc. ~8,450 packages.rpm ).

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