new installation process

etc/profile.arch

@@ -0,0 +1,54 @@
+# /etc/profile
+
+# Append "$1" to $PATH when not already in.
+# This function API is accessible to scripts in /etc/profile.d
+append_path () {
+    case ":$PATH:" in
+        *:"$1":*)
+            ;;
+        *)
+            PATH="${PATH:+$PATH:}$1"
+    esac
+}
+
+# Append our default paths
+append_path '/usr/local/sbin'
+append_path '/usr/local/bin'
+append_path '/usr/bin'
+
+# Force PATH to be environment
+export PATH
+
+#
+# Load profiles from /etc/profile.d
+if test -d /etc/profile.d/; then
+        for profile in /etc/profile.d/*.sh; do
+                test -r "$profile" && . "$profile"
+        done
+        unset profile
+fi
+
+# unset GLOBSORT, before anything else is sourced
+# This variable will be part of bash => 5.3
+# The rationale is that the user should always be able
+# to expect that the snippets be processed in a deterministic order.
+unset -v GLOBSORT
+
+# Unload our profile API functions
+unset -f append_path
+
+# Source global bash config, when interactive but not posix or sh mode
+if test "$BASH" &&\
+   ! test -v PS1 &&\
+   ! test -v POSIXLY_CORRECT &&\
+   test "${0#-}" != sh &&\
+   test -r /etc/bash.bashrc
+then
+        . /etc/bash.bashrc
+fi
+
+# Termcap is outdated, old, and crusty, kill it.
+unset TERMCAP
+
+# Man is much better than us at figuring this out
+unset MANPATH