es gibt 2 arten von shell logins
1.) Interactive shell (login in xterm,console,gnome-terminal,eterm, ... ohne --login opiton)
2.) login shell (login in linuxconsole, oder xterm,console,gnome-terminal mit --login option)

der unterschied dabei ist welche datein ausgewertet werden beim login.
nur die interactive shell wertet ~/.bashrc aus. So genau weiss ich das auch nicht einfach bei "man bash" nachschaun welche datein bei interaktive oder login shell ausgewertet werden.

INVOCATION
A login shell is one whose first character of argument zero is a -, or one started with the --login
option.

An interactive shell is one started without non-option arguments and without the -c option whose
standard input and output are both connected to terminals (as determined by isatty(3)), or one
started with the -i option. PS1 is set and $- includes i if bash is interactive, allowing a shell
script or a startup file to test this state.

The following paragraphs describe how bash executes its startup files. If any of the files exist but
cannot be read, bash reports an error. Tildes are expanded in file names as described below under
Tilde Expansion in the EXPANSION section.

When bash is invoked as an interactive login shell, or as a non-interactive shell with the --login
option, it first reads and executes commands from the file /etc/profile, if that file exists. After
reading that file, it looks for ~/.bash_profile, ~/.bash_login, and ~/.profile, in that order, and
reads and executes commands from the first one that exists and is readable. The --noprofile option
may be used when the shell is started to inhibit this behavior.

When a login shell exits, bash reads and executes commands from the file ~/.bash_logout, if it
exists.

When an interactive shell that is not a login shell is started, bash reads and executes commands from
~/.bashrc, if that file exists. This may be inhibited by using the --norc option. The --rcfile file
option will force bash to read and execute commands from file instead of ~/.bashrc.

When bash is started non-interactively, to run a shell script, for example, it looks for the variable
BASH_ENV in the environment, expands its value if it appears there, and uses the expanded value as
the name of a file to read and execute. Bash behaves as if the following command were executed:
if [ -n "$BASH_ENV" ]; then . "$BASH_ENV"; fi
but the value of the PATH variable is not used to search for the file name.

If bash is invoked with the name sh, it tries to mimic the startup behavior of historical versions of
sh as closely as possible, while conforming to the POSIX standard as well. When invoked as an inter-
active login shell, or a non-interactive shell with the --login option, it first attempts to read and
execute commands from /etc/profile and ~/.profile, in that order. The --noprofile option may be used
to inhibit this behavior. When invoked as an interactive shell with the name sh, bash looks for the
variable ENV, expands its value if it is defined, and uses the expanded value as the name of a file
to read and execute. Since a shell invoked as sh does not attempt to read and execute commands from
any other startup files, the --rcfile option has no effect. A non-interactive shell invoked with the
name sh does not attempt to read any other startup files. When invoked as sh, bash enters posix mode
after the startup files are read.

ich kenne nur 3 möglichkeiten programme zu starten.
1.)./ausführbaredatei
2.)sh ausführbaredatei
3.)java -jar ausführbarejavadatei.jar
4.)man kann die PATH variable erweitern das man das ./ weglassen kann wenn man in verzeichnis ist (export PATH=$PATH:.)

man, sind die von redhat unfähig. So ein schweinestall, das unübersichtlichste shell script was ich jeh gesehen habe. Sorry, bin nicht ganz mitgekommen was du eigendlich willst . Also normalerweise wird in der /etc/profile die PATH , die PS1 , die inputrc variable und die umask gesetzt und eventuel noch ein skript gestartet was die restlichen env-variablen beinhaltet. So ungefähr weiss ich was da vor sich geht in deiner profile, aber so umnötig kompliziert geschrieben hab ichs noch nie gesehen.