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SHELL environment variable still points to zsh after using bash
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.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
I am trying to jump between zsh and bash.
By default, I have zsh as my shell, I can know this by typing:
echo $SHELL and I get /bin/zsh
However, I want to open Bash, so I type /bin/bash; I assume I am in bash now, but if I echo $SHELL I still get /bin/zsh
What's wrong, please?
bash shell zsh
edited yesterday
Jeff Schaller♦
46.4k1166151
asked Jun 4 at 20:16
Jack ThomsonJack Thomson
695
add a comment |
I am trying to jump between zsh and bash.
By default, I have zsh as my shell, I can know this by typing:
echo $SHELL and I get /bin/zsh
However, I want to open Bash, so I type /bin/bash; I assume I am in bash now, but if I echo $SHELL I still get /bin/zsh
What's wrong, please?
bash shell zsh
edited yesterday
Jeff Schaller♦
46.4k1166151
asked Jun 4 at 20:16
Jack ThomsonJack Thomson
695
Linking in for similarity: unix.stackexchange.com/q/71121/117549
– Jeff Schaller♦
Jun 4 at 20:34
add a comment |
I am trying to jump between zsh and bash.
By default, I have zsh as my shell, I can know this by typing:
echo $SHELL and I get /bin/zsh
However, I want to open Bash, so I type /bin/bash; I assume I am in bash now, but if I echo $SHELL I still get /bin/zsh
What's wrong, please?
bash shell zsh
edited yesterday
Jeff Schaller♦
46.4k1166151
asked Jun 4 at 20:16
Jack ThomsonJack Thomson
695
I am trying to jump between zsh and bash.
By default, I have zsh as my shell, I can know this by typing:
echo $SHELL and I get /bin/zsh
However, I want to open Bash, so I type /bin/bash; I assume I am in bash now, but if I echo $SHELL I still get /bin/zsh
What's wrong, please?
bash shell zsh
bash shell zsh
edited yesterday
Jeff Schaller♦
46.4k1166151
asked Jun 4 at 20:16
Jack ThomsonJack Thomson
695
edited yesterday
Jeff Schaller♦
46.4k1166151
asked Jun 4 at 20:16
Jack ThomsonJack Thomson
695
edited yesterday
Jeff Schaller♦
46.4k1166151
edited yesterday
Jeff Schaller♦
46.4k1166151
edited yesterday
Jeff Schaller♦
46.4k1166151
46.4k1166151
asked Jun 4 at 20:16
Jack ThomsonJack Thomson
695
asked Jun 4 at 20:16
Jack ThomsonJack Thomson
695
asked Jun 4 at 20:16
Jack ThomsonJack Thomson
695
695
Linking in for similarity: unix.stackexchange.com/q/71121/117549
– Jeff Schaller♦
Jun 4 at 20:34
add a comment |
Linking in for similarity: unix.stackexchange.com/q/71121/117549
– Jeff Schaller♦
Jun 4 at 20:34
Linking in for similarity: unix.stackexchange.com/q/71121/117549
– Jeff Schaller♦
Jun 4 at 20:34
Linking in for similarity: unix.stackexchange.com/q/71121/117549
– Jeff Schaller♦
Jun 4 at 20:34
add a comment |
2 Answers
2
active
oldest
votes
SHELL is an environment variable that is passed from bash to zsh when you call zsh. SHELL is not one of the Parameters Set By The Shell in zsh, so its value remains intact.
bash$ SHELL=turtle zsh
zsh$ echo $SHELL
turtle
For indications that you're in a zsh shell, try:
echo $ZSH_NAME
echo $0
The SHELL variable is traditionally set by the login program, "as specified by the password database". (Copied from What sets the $SHELL environment variable?)
answered Jun 4 at 20:26
Jeff Schaller♦Jeff Schaller
46.4k1166151
I'd welcome better indications of a zsh shell; a possible list includes $module_path and $ZSH_VERSION, although in theory other shells could set those.
– Jeff Schaller♦
Jun 4 at 20:31
1
Also for consideration:ps -ocomm= -p $$
– Jeff Schaller♦
Jun 4 at 20:33
thank you, but how did $SHELL get assigned in the first place? I install zsh just recently
– Jack Thomson
Jun 4 at 21:29
Great point, @Jack. See the update; your passwd entry likely still points to /bin/bash; you may try (or request the change) to set it to zsh.
– Jeff Schaller♦
Jun 4 at 22:36
add a comment |
Many shells set a version variable on starting.
bash use BASH_VERSION and zsh use ZSH_VERSION.
Setting both variables to a known value will reliably detect which shell was started:
BASH_VERSION=notbash ZSH_VERSION=notzsh sh -c 'echo "$BASH_VERSION $ZSH_VERSION"'
will print notbash 5.3.1 if sh is zsh or 5.0.2(2)-release notzsh if sh is bash.
Sadly ksh segfaults on using KSH_VERSION with a string value.
answered Jun 4 at 21:29
IsaacIsaac
13.1k12159
maybe echo $0 is a bit easier than ZSH_VERSION, BASH_VERSION. but I like the idea, didn't about those variables
– Jack Thomson
Jun 4 at 21:32
1
The value of $0 could be modified at will, for example:sh -c 'echo "$0"' MyNameOfShelland by several other methods. @JackThomson
– Isaac
Jun 4 at 21:34
fair point, indeed
– Jack Thomson
Jun 4 at 21:38
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
SHELL is an environment variable that is passed from bash to zsh when you call zsh. SHELL is not one of the Parameters Set By The Shell in zsh, so its value remains intact.
bash$ SHELL=turtle zsh
zsh$ echo $SHELL
turtle
For indications that you're in a zsh shell, try:
echo $ZSH_NAME
echo $0
The SHELL variable is traditionally set by the login program, "as specified by the password database". (Copied from What sets the $SHELL environment variable?)
answered Jun 4 at 20:26
Jeff Schaller♦Jeff Schaller
46.4k1166151
I'd welcome better indications of a zsh shell; a possible list includes $module_path and $ZSH_VERSION, although in theory other shells could set those.
– Jeff Schaller♦
Jun 4 at 20:31
1
Also for consideration:ps -ocomm= -p $$
– Jeff Schaller♦
Jun 4 at 20:33
thank you, but how did $SHELL get assigned in the first place? I install zsh just recently
– Jack Thomson
Jun 4 at 21:29
Great point, @Jack. See the update; your passwd entry likely still points to /bin/bash; you may try (or request the change) to set it to zsh.
– Jeff Schaller♦
Jun 4 at 22:36
add a comment |
SHELL is an environment variable that is passed from bash to zsh when you call zsh. SHELL is not one of the Parameters Set By The Shell in zsh, so its value remains intact.
bash$ SHELL=turtle zsh
zsh$ echo $SHELL
turtle
For indications that you're in a zsh shell, try:
echo $ZSH_NAME
echo $0
The SHELL variable is traditionally set by the login program, "as specified by the password database". (Copied from What sets the $SHELL environment variable?)
answered Jun 4 at 20:26
Jeff Schaller♦Jeff Schaller
46.4k1166151
I'd welcome better indications of a zsh shell; a possible list includes $module_path and $ZSH_VERSION, although in theory other shells could set those.
– Jeff Schaller♦
Jun 4 at 20:31
1
Also for consideration:ps -ocomm= -p $$
– Jeff Schaller♦
Jun 4 at 20:33
thank you, but how did $SHELL get assigned in the first place? I install zsh just recently
– Jack Thomson
Jun 4 at 21:29
Great point, @Jack. See the update; your passwd entry likely still points to /bin/bash; you may try (or request the change) to set it to zsh.
– Jeff Schaller♦
Jun 4 at 22:36
add a comment |
SHELL is an environment variable that is passed from bash to zsh when you call zsh. SHELL is not one of the Parameters Set By The Shell in zsh, so its value remains intact.
bash$ SHELL=turtle zsh
zsh$ echo $SHELL
turtle
For indications that you're in a zsh shell, try:
echo $ZSH_NAME
echo $0
The SHELL variable is traditionally set by the login program, "as specified by the password database". (Copied from What sets the $SHELL environment variable?)
answered Jun 4 at 20:26
Jeff Schaller♦Jeff Schaller
46.4k1166151
SHELL is an environment variable that is passed from bash to zsh when you call zsh. SHELL is not one of the Parameters Set By The Shell in zsh, so its value remains intact.
bash$ SHELL=turtle zsh
zsh$ echo $SHELL
turtle
For indications that you're in a zsh shell, try:
echo $ZSH_NAME
echo $0
The SHELL variable is traditionally set by the login program, "as specified by the password database". (Copied from What sets the $SHELL environment variable?)
answered Jun 4 at 20:26
Jeff Schaller♦Jeff Schaller
46.4k1166151
edited Jun 4 at 22:35
answered Jun 4 at 20:26
Jeff Schaller♦Jeff Schaller
46.4k1166151
answered Jun 4 at 20:26
Jeff Schaller♦Jeff Schaller
46.4k1166151
answered Jun 4 at 20:26
Jeff Schaller♦Jeff Schaller
46.4k1166151
46.4k1166151
I'd welcome better indications of a zsh shell; a possible list includes $module_path and $ZSH_VERSION, although in theory other shells could set those.
– Jeff Schaller♦
Jun 4 at 20:31
1
Also for consideration:ps -ocomm= -p $$
– Jeff Schaller♦
Jun 4 at 20:33
thank you, but how did $SHELL get assigned in the first place? I install zsh just recently
– Jack Thomson
Jun 4 at 21:29
Great point, @Jack. See the update; your passwd entry likely still points to /bin/bash; you may try (or request the change) to set it to zsh.
– Jeff Schaller♦
Jun 4 at 22:36
add a comment |
I'd welcome better indications of a zsh shell; a possible list includes $module_path and $ZSH_VERSION, although in theory other shells could set those.
– Jeff Schaller♦
Jun 4 at 20:31
1
Also for consideration:ps -ocomm= -p $$
– Jeff Schaller♦
Jun 4 at 20:33
thank you, but how did $SHELL get assigned in the first place? I install zsh just recently
– Jack Thomson
Jun 4 at 21:29
Great point, @Jack. See the update; your passwd entry likely still points to /bin/bash; you may try (or request the change) to set it to zsh.
– Jeff Schaller♦
Jun 4 at 22:36
I'd welcome better indications of a zsh shell; a possible list includes $module_path and $ZSH_VERSION, although in theory other shells could set those.
– Jeff Schaller♦
Jun 4 at 20:31
I'd welcome better indications of a zsh shell; a possible list includes $module_path and $ZSH_VERSION, although in theory other shells could set those.
– Jeff Schaller♦
Jun 4 at 20:31
1
1
Also for consideration:
ps -ocomm= -p $$– Jeff Schaller♦
Jun 4 at 20:33
Also for consideration:
ps -ocomm= -p $$– Jeff Schaller♦
Jun 4 at 20:33
thank you, but how did $SHELL get assigned in the first place? I install zsh just recently
– Jack Thomson
Jun 4 at 21:29
thank you, but how did $SHELL get assigned in the first place? I install zsh just recently
– Jack Thomson
Jun 4 at 21:29
Great point, @Jack. See the update; your passwd entry likely still points to /bin/bash; you may try (or request the change) to set it to zsh.
– Jeff Schaller♦
Jun 4 at 22:36
Great point, @Jack. See the update; your passwd entry likely still points to /bin/bash; you may try (or request the change) to set it to zsh.
– Jeff Schaller♦
Jun 4 at 22:36
add a comment |
Many shells set a version variable on starting.
bash use BASH_VERSION and zsh use ZSH_VERSION.
Setting both variables to a known value will reliably detect which shell was started:
BASH_VERSION=notbash ZSH_VERSION=notzsh sh -c 'echo "$BASH_VERSION $ZSH_VERSION"'
will print notbash 5.3.1 if sh is zsh or 5.0.2(2)-release notzsh if sh is bash.
Sadly ksh segfaults on using KSH_VERSION with a string value.
answered Jun 4 at 21:29
IsaacIsaac
13.1k12159
maybe echo $0 is a bit easier than ZSH_VERSION, BASH_VERSION. but I like the idea, didn't about those variables
– Jack Thomson
Jun 4 at 21:32
1
The value of $0 could be modified at will, for example:sh -c 'echo "$0"' MyNameOfShelland by several other methods. @JackThomson
– Isaac
Jun 4 at 21:34
fair point, indeed
– Jack Thomson
Jun 4 at 21:38
add a comment |
Many shells set a version variable on starting.
bash use BASH_VERSION and zsh use ZSH_VERSION.
Setting both variables to a known value will reliably detect which shell was started:
BASH_VERSION=notbash ZSH_VERSION=notzsh sh -c 'echo "$BASH_VERSION $ZSH_VERSION"'
will print notbash 5.3.1 if sh is zsh or 5.0.2(2)-release notzsh if sh is bash.
Sadly ksh segfaults on using KSH_VERSION with a string value.
answered Jun 4 at 21:29
IsaacIsaac
13.1k12159
maybe echo $0 is a bit easier than ZSH_VERSION, BASH_VERSION. but I like the idea, didn't about those variables
– Jack Thomson
Jun 4 at 21:32
1
The value of $0 could be modified at will, for example:sh -c 'echo "$0"' MyNameOfShelland by several other methods. @JackThomson
– Isaac
Jun 4 at 21:34
fair point, indeed
– Jack Thomson
Jun 4 at 21:38
add a comment |
Many shells set a version variable on starting.
bash use BASH_VERSION and zsh use ZSH_VERSION.
Setting both variables to a known value will reliably detect which shell was started:
BASH_VERSION=notbash ZSH_VERSION=notzsh sh -c 'echo "$BASH_VERSION $ZSH_VERSION"'
will print notbash 5.3.1 if sh is zsh or 5.0.2(2)-release notzsh if sh is bash.
Sadly ksh segfaults on using KSH_VERSION with a string value.
answered Jun 4 at 21:29
IsaacIsaac
13.1k12159
Many shells set a version variable on starting.
bash use BASH_VERSION and zsh use ZSH_VERSION.
Setting both variables to a known value will reliably detect which shell was started:
BASH_VERSION=notbash ZSH_VERSION=notzsh sh -c 'echo "$BASH_VERSION $ZSH_VERSION"'
will print notbash 5.3.1 if sh is zsh or 5.0.2(2)-release notzsh if sh is bash.
Sadly ksh segfaults on using KSH_VERSION with a string value.
answered Jun 4 at 21:29
IsaacIsaac
13.1k12159
answered Jun 4 at 21:29
IsaacIsaac
13.1k12159
answered Jun 4 at 21:29
IsaacIsaac
13.1k12159
answered Jun 4 at 21:29
IsaacIsaac
13.1k12159
13.1k12159
maybe echo $0 is a bit easier than ZSH_VERSION, BASH_VERSION. but I like the idea, didn't about those variables
– Jack Thomson
Jun 4 at 21:32
1
The value of $0 could be modified at will, for example:sh -c 'echo "$0"' MyNameOfShelland by several other methods. @JackThomson
– Isaac
Jun 4 at 21:34
fair point, indeed
– Jack Thomson
Jun 4 at 21:38
add a comment |
maybe echo $0 is a bit easier than ZSH_VERSION, BASH_VERSION. but I like the idea, didn't about those variables
– Jack Thomson
Jun 4 at 21:32
1
The value of $0 could be modified at will, for example:sh -c 'echo "$0"' MyNameOfShelland by several other methods. @JackThomson
– Isaac
Jun 4 at 21:34
fair point, indeed
– Jack Thomson
Jun 4 at 21:38
maybe echo $0 is a bit easier than ZSH_VERSION, BASH_VERSION. but I like the idea, didn't about those variables
– Jack Thomson
Jun 4 at 21:32
maybe echo $0 is a bit easier than ZSH_VERSION, BASH_VERSION. but I like the idea, didn't about those variables
– Jack Thomson
Jun 4 at 21:32
1
1
The value of $0 could be modified at will, for example:
sh -c 'echo "$0"' MyNameOfShell and by several other methods. @JackThomson– Isaac
Jun 4 at 21:34
The value of $0 could be modified at will, for example:
sh -c 'echo "$0"' MyNameOfShell and by several other methods. @JackThomson– Isaac
Jun 4 at 21:34
fair point, indeed
– Jack Thomson
Jun 4 at 21:38
fair point, indeed
– Jack Thomson
Jun 4 at 21:38
add a comment |
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Linking in for similarity: unix.stackexchange.com/q/71121/117549
– Jeff Schaller♦
Jun 4 at 20:34