Introduction

*A Unix-like operating system, often referred to as UN*X or nix, behaves similarly to a Unix system; however, there is no official technical standard defining this term, leading to varying opinions on how closely an operating system resembles Unix. While IBM i does not directly run Linux or Unix, it offers some Unix-like capabilities through key technologies :

• PASE (Portable Application Solutions Environment) is a runtime environment that allows AIX applications to run on IBM i.
• Qshell is a Unix-like command line interface and scripting environment for IBM i. It provides a shell, commands and scripts.
• IBM i supports running many open source technologies commonly found on Unix/Linux systems, including languages like Python, Node.js, PHP, web servers like Apache and databases like MySQL.
• While IBM i cannot natively run Linux containers, it can integrate with Linux environments running containers, like MERLIN (Modernization Engine for Lifecycle Integration) which is an IBM i development tool.

Setting up the PASE

please, refer to my article here to configure SSH : Configure SSH on IBM i with keys

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to use effectively shell, use SSH with terminal like PuTTY (or QP2TERM on 5250)

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Environment

CALL QP2TERM → run shell PASE on 5250 session (using Korn shell; /QOpenSys/usr/bin/sh)

the QIBM_MULTI_THREADED is a variable that enables multi-threading for applications running in the QSH (Qshell) environment.

enable the variable : ADDENVVAR ENVVAR(QIBM_MULTI_THREADED) VALUE('Y')

to verify : WRKENVVAR or DSPJOB → 22

$PATH

echo 'PATH=/QOpenSys/pkgs/bin:$PATH' >> $HOME/.profile → export PATH >> $HOME/.profile

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temporary : PATH=/QOpenSys/pkgs/bin:$PATH → export PATH PASE_PATH

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