$ type perl
perl is hashed ($HOME/my/p5382/bin/perl)
$ cd $HOME/my/p5382
$ cpanm --from https://www.cpan.org/ --verify IPC::System::Simple 2>&1 | tee IPC-System-Simple.tmp
--> Working on IPC::System::Simple
Fetching https://www.cpan.org/authors/id/J/JK/JKEENAN/IPC-System-Simple-1.30.tar.gz ... OK
Fetching https://www.cpan.org/authors/id/J/JK/JKEENAN/CHECKSUMS ... OK
Configuring IPC-System-Simple-1.30 ... OK
Building and testing IPC-System-Simple-1.30 ... OK
Successfully installed IPC-System-Simple-1.30
1 distribution installed