Just an example of how you can start migrating from the 5250 to SSH

Create aliases to various commands that you use.  Even create commands greater than 10 characters! lol

# IBMi aliases
alias db2='function _db2(){ echo "Running $1"; system -i "call QSYS/QZDFMDB2 parm('\''$1'\'')"; };_db2'
alias wrkactjob='function _wrkactjob(){ system WRKACTJOB; };_wrkactjob'
alias zendjobs='function _zendjobs(){ ps -ef | grep -i zend; };_zendjobs'
alias qccsid='function _qccsid(){ system "DSPSYSVAL SYSVAL(QCCSID)"; };_qccsid'
alias dsplibl='function _dsplibl(){ qsh -c '\''/QSYS.LIB/QSHELL.LIB/SYSTEM.PGM dsplibl'\''; system -i "DSPLIBL"; };_dsplibl'
# IBMi PHP
alias startzendserver='function _StartZendServer(){ system "STRTCPSVR SERVER(*HTTP) HTTPSVR(ZENDSVR)"; };_StartZendServer'
alias endzendserver='function _EndZendServer(){ system "ENDTCPSVR SERVER(*HTTP) HTTPSVR(ZENDSVR)"; };_EndZendServer'
# ::TODO:: change sleep 20 to wait for ENDTCPSVR to finish
alias restartzendserver='function _ResterZendServer(){ system "ENDTCPSVR SERVER(*HTTP) HTTPSVR(ZENDSVR)"; sleep 20; system "STRTCPSVR SERVER(*HTTP) HTTPSVR(ZENDSVR)"};_RestartZendServer'

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alias.sh
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Other files to put in your /home/USER/ directory to unleash the power of the shell

Shout out to @tweetjbh https://twitter.com/tweetjbh for the ideas!

# .aliases
# vim:syntax=shexit
# Reload bash aliases
alias reload="source ~/.bash_profile"
# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
alias ls='ls –color=auto'
#alias dir='dir –color=auto'
#alias vdir='vdir –color=auto'
alias grep='grep –color=auto'
alias fgrep='fgrep –color=auto'
alias egrep='egrep –color=auto'
fi
# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'
# Directory Navigation
alias ..='cd ..'
alias …='cd ../..'
alias ….='cd ../../..'
alias …..='cd ../../../..'
alias ……='cd ../../../../..'
# exit aliases
alias bye="exit"
alias quit="exit"
# Add an "alert" alias for long running commands. Use like so:
# sleep 10; alert
alias alert='notify-send –urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'
# IBMi aliases
alias db2='function _db2(){ echo "Running $1"; system -i "call QSYS/QZDFMDB2 parm('\''$1'\'')"; };_db2'
alias wrkactjob='function _wrkactjob(){ system WRKACTJOB; };_wrkactjob'
alias zendjobs='function _zendjobs(){ ps -ef | grep -i zend; };_zendjobs'
alias qccsid='function _qccsid(){ system "DSPSYSVAL SYSVAL(QCCSID)"; };_qccsid'
alias dsplibl='function _dsplibl(){ qsh -c '\''/QSYS.LIB/QSHELL.LIB/SYSTEM.PGM dsplibl'\''; system -i "DSPLIBL"; };_dsplibl'

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.aliases
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#MAKE SURE your file is unix based and ascii encoded. CR -> ^M in unix
#Setup PATH for executing binary utilities (i.e. vi,php)
export PATH=$PATH:/QOpenSys/usr/bin:/QOpenSys/bin:/usr/local/zendsvr/bin
#Setup TERM (terminal) for vi
export TERM=xterm
#Customize the PS1 (command line Prompt) to a green color (because we're on an IBM i :D),
#with the display of
#[username@host CurrentDirectory CurrentTime]
#export PS1="\e[0;32m[\\u@\\h \\W \\@]\\$ \e[m"
#Or use this prompt style: user@host – directory – #
export PS1="\n\[\e[0;32m\]┌─[\[\e[0m\]\[\e[1;33m\]\u\[\e[0m\]\[\e[1;32m\] @ \[\e[0m\]\[\e[1;33m\]\h\[\e[0m\]\[\e[0;32m\]]─[\[\e[0m\]\[\e[1;34m\]\w\[\e[0m\]\[\e[0;32m\]]\[\e[0;32m\]─[\[\e[0m\]\[\e[0;31m\]\!\[\e[0m\]\[\e[0;32m\]]\[\e[0m\]\n\[\e[0;32m\]└─[\[\e[0m\]\[\e[1;37m\]\$\[\e[0m\]\[\e[0;32m\]]› \[\e[0m\]"
export PS1="[\u@\h \W]\$"
export PS1='\e[0;31m $PS1 \e[m'

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.bash_profile
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# .bashrc
# vim:syntax=sh
# Make vim the default editor
export EDITOR="vim"
# Temporary utility function
function _source_if_exists {
local file ;
for file ; do
[ -f "${file}" ] && source "${file}" ;
done
}
#
# Common bash invocations…
#
# (1) interactive login shells
# $- = himBH
#
# (2) non-interactive login shells
# $- = hBc
#
case $- in *i* )
# Source global definitions
_source_if_exists "/etc/bashrc" ;
# Before anything else
_source_if_exists "${HOME}/.before_dotfiles" ;
# This loads RVM into a shell session
_source_if_exists "${HOME}/.rvm/scripts/rvm" ;
# Settings for bash history
_source_if_exists "${HOME}/.history" ;
# Set the PS1 prompt for interactive shells
_source_if_exists "${HOME}/.prompting" ;
# User-specific aliases, functions and paths
_source_if_exists "${HOME}/.aliases" "${HOME}/.functions" "${HOME}/.path" "${HOME}/.profile" ;
# NVM
_source_if_exists "${HOME}/.nvm/nvm.sh" ;
# After everything else
_source_if_exists "${HOME}/.after_dotfiles" ;
esac
# Temporary utility function
unset _source_if_exists ;

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.bashrc
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# .functions
# vim:syntax=sh
#
# Functions on home path
#
function h { cd ~/$1; }
function d { cd ~/Development/$1; }
#
# ANSI colouring functions
#
ERROR_COLOR=";31"
WARNING_COLOR=";35"
INFO_COLOR=";36"
VERBOSE_COLOR=";32"
DEBUG_COLOR=";34"
error() { local opts ; [ $1 = "-n" ] && { opts=$1 ; shift ; } ; echo $opts "[1${ERROR_COLOR}m$*" ; }
warning() { local opts ; [ $1 = "-n" ] && { opts=$1 ; shift ; } ; echo $opts "[1${WARNING_COLOR}m$*" ; }
info() { local opts ; [ $1 = "-n" ] && { opts=$1 ; shift ; } ; echo $opts "[1${INFO_COLOR}m$*" ; }
verbose() { local opts ; [ $1 = "-n" ] && { opts=$1 ; shift ; } ; echo $opts "[1${VERBOSE_COLOR}m$*" ; }
debug() { local opts ; [ $1 = "-n" ] && { opts=$1 ; shift ; } ; echo $opts "[1${DEBUG_COLOR}m$*" ; }
highlight() { local opts ; [ $1 = "-n" ] && { opts=$1 ; shift ; } ; echo $opts "$*" ; }
danger() { local opts ; [ $1 = "-n" ] && { opts=$1 ; shift ; } ; echo $opts "$*" ; }
#
# cross-platform functions
#
ttitle() { echo -n "]0;$@"; }
pecho() {
for arg ; do
echo "$arg" | tr ':;' '\n\n' ;
done
}
# Make directory and move to it
mkcdr() { mkdir -p $1 && cd $1; }
# Extract
extract() {
if [ -f $1 ] ; then
case $1 in
*.tar.bz2) tar xjf $1 ;;
*.tar.gz) tar xzf $1 ;;
*.bz2) bunzip2 $1 ;;
*.rar) rar x $1 ;;
*.gz) gunzip $1 ;;
*.tar) tar xf $1 ;;
*.tbz2) tar xjf $1 ;;
*.tgz) tar xzf $1 ;;
*.zip) unzip $1 ;;
*.Z) uncompress $1 ;;
*.7z) 7z x $1 ;;
*) echo "'$1' cannot be extracted via extract()" ;;
esac
else
echo "'$1' is not a valid file"
fi
}
startzs(){
system -i "STRSBS SBSD(ZENDSVR/ZENDSVR)"
system -i "STRTCPSVR SERVER(*HTTP) HTTPSVR(ZENDSVR)"
system -i "SBMJOB CMD(CALL PGM(ZENDSVR6/ZSTRSBS)) JOB(START_ZSV) JOBD(ZENDSVR6/ZSVR_JOBD) JOBQ(QGPL/QBATCH)"
}
endzs(){
system -i "SBMJOB CMD(CALL PGM(ZENDSVR6/ZENDSBS)) JOB(STOP_ZSV) JOBD(ZENDSVR6/ZSVR_JOBD) JOBQ(QGPL/QBATCH)"
}
#Parameter ${1} is the directory you want to effect like /www/zendsvr/htdocs/ or /www/zendsvr/writeable/uploads
http-permissions() {
system -i "CHGAUT OBJ('${1}') USER(NOGROUP) DTAAUT(*RX) OBJAUT(*NONE) SUBTREE(*ALL)"
system -i "CHGPGP OBJ('${1}') NEWPGP(NOGROUP) RVKOLDAUT(*NO) SUBTREE(*ALL)"
#Usage: on the command line
#http-permissions /www/zendsvr/htdocs/
#/www/zendsvr/htdocs/ will be given permissions recursively to the apache group
}
http-write-permissions() {
system -i "CHGAUT OBJ('${1}') USER(QTMHHTTP) DTAAUT(*RWX) OBJAUT(*NONE) SUBTREE(*NO)"
}
remove-public-permissions() {
system -i "CHGAUT OBJ('${1}') USER(*PUBLIC) DTAAUT(*NONE) OBJAUT(*NONE) SUBTREE(*ALL)"
#in case someone incorrectly gave public permissions
}
developer-permissions() {
system -i "CHGOWN OBJ('${1}') NEWOWN(WEBCODERS) RVKOLDAUT(*NO) SUBTREE(*ALL)"
system -i "CHGAUT OBJ('${1}') USER(WEBCODERS) DTAAUT(*RWX) OBJAUT(*ALL) SUBTREE(*ALL)"
}

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.functions
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# .history
# vim:syntax=sh
# Larger bash history (allow 32³ entries; default is 500)
export HISTSIZE=32768
export HISTFILESIZE=$HISTSIZE
export HISTCONTROL=ignoredups:ignorespace
# Ignore some commands in history
export HISTIGNORE="ls:ls *:llcd:cd -:pwd;exit:date:* –help"
# append to the history file, don't overwrite it
shopt -s histappend

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.history
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#default profile stored in user's home directory
#setup environment variables
export PATH=$PATH:/QOpenSys/usr/bin:/QOpenSys/bin:/usr/local/zendsvr/bin
#export LIBPATH=$LIBPATH:/QOpenSys/opt/freeware/lib
export TERM=xterm
## detect if we're in a PASE shell
#/QSYS.LIB/QSHELL.LIB/UNAME.PGM > /dev/null 2>&1
#if [ $? != 0 -a "$SHELL" != "/QOpenSys/usr/bin/bash" ]
#then
# exec /QOpenSys/usr/bin/bash
#fi
umask 022

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.profile
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#profile if your using zsh (Z Shell)
export TERM=xterm
# Files created using this user profile in the shell session will not give group and other permissions (https://en.wikipedia.org/wiki/Umask)
umask go=
# or set this in sshd_config so it applies globally using
#Subsystem sftp /usr/lib/openssh/sftp-server -u 0002
#or from command line
#echo "export TERM=xterm > ~/.zprofile"
#echo "umask go=" >> ~/.zprofile

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.zprofile
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