When selecting a terminal emulator, there are several key points to consider: Code page conversion: By default, z/OS UNIX System Services operates in the.In Linux and, to my knowledge, all Unix systems, terminal emulators run interactive, non-login shells by default. If you spend a lot of time in a terminal, then you'll appreciate all the. Why Do I Want It Check out the impressive features and screenshots. ITerm2 brings the terminal into the modern age with features you never knew you always wanted. It works on Macs with macOS 10.14 or newer. ITerm2 is a replacement for Terminal and the successor to iTerm.
![]() Bash_profile, then? This is done for mostly historical reasons, when machines were extremely slow compared to today's workstations. Bashrc a separate file from. Xsession), any further subshells don't need to re-run it.As the Debian wiki page linked by Alan Shutko explains:"Why is. Bashrc so that they can be re-read by every subshell."All the same rules hold on OSX, too, except for one thing — the OSX GUI doesn't run. The transient settings and aliases which are not inherited are put in. So the difficult initial set-up commands, which create environment variables that can be passed down to child processes, are put in. Bash_profile could take quite a long time, especially on a machine where a lot of the work had to be done by external commands (pre-bash). Bash_profile at all, and just include some bash-specific code in the generic. Bash_profile: ] & source ~/.profile # load generic profile settings] & source ~/.bashrc # load aliases etc.Alternatively, it's possible to have no. The standard work-around for that is to include something like the following commands in. Bashrc if it's started as a login shell. Profile (by telling the shell it launches that it's a login shell), otherwise you'd end up with a potentially crippled shell.Now, a kind of a silly peculiarity of bash, not shared by most other shells, is that it will not automatically run. But that means that a terminal emulator on OSX does need to run. Bash_profile.Edit: As strugee notes, the default shell on OSX used to be tcsh, whose behavior is much saner in this respect: when run as an interactive login shell, tcsh automatically reads both. In any case, the proper work-around is to simply add those lines to. Profile doesn't do this, then that's arguably a bug. Xsession would have run the. With tcsh, no such tricks were needed — starting tcsh as a login shell from an OSX terminal emulator Just Plain Works and does the right thing without such kluges.The main reason that X terminal applications run non-login shells by default is that in the beginning of time, your. Bash_profile is because, when they switched from tcsh to bash, the folks at Apple simply didn't notice this little wart in bash's startup behavior. Bash_profile trick shown above.Based on this, I'm 99% sure that the failure of OSX to supply an appropriate default. Everything seems to be OK until he gets an error message in the wrong locale! Since he overrides the LANG variable in his. Xsession file and runs fluxbox. He logs in just fine, and xdm reads his. Pierre comes back from vacation one day and discovers that his system administrator has installed xdm on the Debian system. Discussion of why this would matter is at :Let's take xdm as an example. Then, since that was all set up already, terminal apps didn't need to run it, they could run the. This means that every time he opens up a new xterm, it will read /etc/profile and. Under this setup, xterm spawns /bin/bash but it puts "-/bin/bash" (or maybe "-bash") in the argument vector, so bash acts like a login shell. This flag tells xterm that instead of launching a normal shell, it should launch a login shell. Bash_profile, his LANG variable is now set to en_US instead of fr_CA.Now, the naive solution to this problem is that instead of launching "xterm", he could configure his window manager to launch "xterm -ls". (That's sort of a shame, since it means it's a lot more annoying to set environment variables, but such is life.) Since it doesn't, when would it run. So while his xterms may be fine, and anything launched from his xterms may be fine, his web browser is still giving him pages in the wrong locale.On OS X, the user environments aren't started by a pile of shell scripts, and launchd doesn't source. He also launches a web browser directly from his fluxbox menu, and the web browser inherits the LANG variable from fluxbox, which is now set to the wrong locale. This may seem to work fine at first - his dot files aren't heavy, so he doesn't even notice the delay - but there's a more subtle problem. Bash_profile says to do that). So if you shell out of Emacs or vi, or if you do a su user.I don't know why they would have done that. It is used for any time you open a shell other than opening a Terminal window. It still has the purpose that it had in the days of the VT100. Bashrc, then? Is it useless? No. Profile will be run sometime.What about. Might as well make the terminals run login shells by default, so that. The only way to access the UNIX underpinnings is through a terminal emulator or through single user mode (disclaimer: I've never actually used single user mode it's commandline-driven IIRC but I may be wrong). On an OS X system, there's no equivalent. You get a login shell there. We are the vendors of the largest UNIX distribution on the planet. (I doubt it, though - maybe one of the older regulars could tell us.) This is about as wild a guess as you can get, but it may be that tcsh normally did something when run as a login shell, and the historical pattern stuck. The default shell of OS X used to be tcsh. (Especially important for the server edition of OS X - presumably if you're running an OS X server, you're a newbie.) It provides a consistent user experience if you SSH into the box. Online Terminal Emulator Update To CurrentBash_profile set to use across different Linux distros and BSD (whatever they call them if they're not distros).I recently bought a used Mac Mini with Sierra installed, so I now have systems with 10.6, 10.10, 10.11, and 10.12. I've been researching the subject in an attempt to build a common. The default terminal emulator runs login shells by default, and presumably iTerm copies that.This is an update to current status: the answers have become stale as new MacOSX versions have been released and login behavior has changed.This question was asked and answered in 2014. It doesn't really make sense to me, either.To answer your subquestion, bash is not patched or anything (at least for this). Free download notepad for mac osContents of /etc/profile: # System-wide. In /etc, there are bashrc, bashrc_Apple_Terminal, and profile.
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