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Why is my GID environment vairble empty?

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0

I try echo $GID but get nothing. However, I can get 1000 by using id -g, what's the differences between them ?

id -u     => 1000

id -g     => 1000

echo $UID => 1000

echo $GID => 

The output of id:

uid=1000(user) gid=1000(user) groups=1000(user),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),113(lpadmin),128(sambashare),999(docker)

The output of groups:

user adm cdrom sudo dip plugdev lpadmin sambashare docker

Ubuntu version:

Distributor ID: Ubuntu

Description:    Ubuntu 16.04.6 LTS

Release:    16.04

Codename:   xenial

environment-variables groups uid

share|improve this question

edited 2 mins ago

Olorin

2,621924

asked 21 mins ago

CoreyCorey

10514

add a comment | 

0

I try echo $GID but get nothing. However, I can get 1000 by using id -g, what's the differences between them ?

id -u     => 1000

id -g     => 1000

echo $UID => 1000

echo $GID => 

The output of id:

uid=1000(user) gid=1000(user) groups=1000(user),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),113(lpadmin),128(sambashare),999(docker)

The output of groups:

user adm cdrom sudo dip plugdev lpadmin sambashare docker

Ubuntu version:

Distributor ID: Ubuntu

Description:    Ubuntu 16.04.6 LTS

Release:    16.04

Codename:   xenial

environment-variables groups uid

share|improve this question

edited 2 mins ago

Olorin

2,621924

asked 21 mins ago

CoreyCorey

10514

add a comment | 

I try echo $GID but get nothing. However, I can get 1000 by using id -g, what's the differences between them ?

id -u     => 1000

id -g     => 1000

echo $UID => 1000

echo $GID => 

The output of id:

uid=1000(user) gid=1000(user) groups=1000(user),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),113(lpadmin),128(sambashare),999(docker)

The output of groups:

user adm cdrom sudo dip plugdev lpadmin sambashare docker

Ubuntu version:

Distributor ID: Ubuntu

Description:    Ubuntu 16.04.6 LTS

Release:    16.04

Codename:   xenial

environment-variables groups uid

share|improve this question

edited 2 mins ago

Olorin

2,621924

asked 21 mins ago

CoreyCorey

10514

id -u     => 1000

id -g     => 1000

echo $UID => 1000

echo $GID => 

uid=1000(user) gid=1000(user) groups=1000(user),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),113(lpadmin),128(sambashare),999(docker)

user adm cdrom sudo dip plugdev lpadmin sambashare docker

Distributor ID: Ubuntu

Description:    Ubuntu 16.04.6 LTS

Release:    16.04

Codename:   xenial

share|improve this question

edited 2 mins ago

Olorin

2,621924

asked 21 mins ago

CoreyCorey

10514

share|improve this question

edited 2 mins ago

Olorin

2,621924

asked 21 mins ago

CoreyCorey

10514

edited 2 mins ago

Olorin

2,621924

edited 2 mins ago

Olorin

2,621924

asked 21 mins ago

CoreyCorey

10514

asked 21 mins ago

CoreyCorey

10514

1 Answer
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0

I assume you're using bash as your shell. Bash doesn't set a GID variable. The list of Bash variables mentions EUID and UID, but not GID.

Zsh, on the other hand, does set GID:

$ bash -c 'echo $GID'



$ zsh -c 'echo $GID'

1000

share

answered 3 mins ago

OlorinOlorin

2,621924

add a comment | 

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0

I assume you're using bash as your shell. Bash doesn't set a GID variable. The list of Bash variables mentions EUID and UID, but not GID.

Zsh, on the other hand, does set GID:

$ bash -c 'echo $GID'



$ zsh -c 'echo $GID'

1000

share

answered 3 mins ago

OlorinOlorin

2,621924

add a comment | 

0

I assume you're using bash as your shell. Bash doesn't set a GID variable. The list of Bash variables mentions EUID and UID, but not GID.

Zsh, on the other hand, does set GID:

$ bash -c 'echo $GID'



$ zsh -c 'echo $GID'

1000

share

answered 3 mins ago

OlorinOlorin

2,621924

add a comment | 

I assume you're using bash as your shell. Bash doesn't set a GID variable. The list of Bash variables mentions EUID and UID, but not GID.

Zsh, on the other hand, does set GID:

$ bash -c 'echo $GID'



$ zsh -c 'echo $GID'

1000

share

answered 3 mins ago

OlorinOlorin

2,621924

$ bash -c 'echo $GID'



$ zsh -c 'echo $GID'

1000

share

answered 3 mins ago

OlorinOlorin

2,621924

answered 3 mins ago

OlorinOlorin

2,621924

answered 3 mins ago

OlorinOlorin

2,621924