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How shall I find out all the terminal types that can work?

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-4

How shall I find out all the terminal types that can work?

On Lubunu 18.04, The followings work

$ TERM=xterm top

$ TERM=vt100 top

but the following don't:

$ TERM=lxterminal top

'lxterminal': unknown terminal type.

$ TERM= top

TERM environment variable not set.

The following returns nothing, which is said to give all the terminal types that can work

$ toe

In a docker container, the following works

$ sudo docker exec -t 851 top



$ sudo docker exec -t 851 env

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

HOSTNAME=851fbf59c6da

TERM=xterm

HOME=/root

but why do the following don't

$ sudo docker exec 851 top

TERM environment variable not set.



$ sudo docker exec 851 bash -c "TERM=xterm top"

top: failed tty get



$ sudo docker exec 851 env

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

HOSTNAME=851fbf59c6da

HOME=/root

Why doesn't prefixing a command with TERM=xterm work in a container while it does in Lubuntu?

Thanks.

terminal docker

share|improve this question

edited 21 hours ago

Tim

asked 21 hours ago

TimTim

28.4k79269491

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You're missing the -t flag when you called sudo docker exec 851 bash -c "TERM=xterm top"
  
  – Stephen Harris
  21 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I am not. That is for "Why doesn't prefixing a command with TERM=xterm work in a container while it does in Lubuntu?"
  
  – Tim
  21 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Because you missed the -t after exec. So no terminal was associated with the exec. So top said "no terminal"
  
  – Stephen Harris
  21 hours ago
  

  
  
  
  

add a comment | 

-4

How shall I find out all the terminal types that can work?

On Lubunu 18.04, The followings work

$ TERM=xterm top

$ TERM=vt100 top

but the following don't:

$ TERM=lxterminal top

'lxterminal': unknown terminal type.

$ TERM= top

TERM environment variable not set.

The following returns nothing, which is said to give all the terminal types that can work

$ toe

In a docker container, the following works

$ sudo docker exec -t 851 top



$ sudo docker exec -t 851 env

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

HOSTNAME=851fbf59c6da

TERM=xterm

HOME=/root

but why do the following don't

$ sudo docker exec 851 top

TERM environment variable not set.



$ sudo docker exec 851 bash -c "TERM=xterm top"

top: failed tty get



$ sudo docker exec 851 env

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

HOSTNAME=851fbf59c6da

HOME=/root

Why doesn't prefixing a command with TERM=xterm work in a container while it does in Lubuntu?

Thanks.

terminal docker

share|improve this question

edited 21 hours ago

Tim

asked 21 hours ago

TimTim

28.4k79269491

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You're missing the -t flag when you called sudo docker exec 851 bash -c "TERM=xterm top"
  
  – Stephen Harris
  21 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I am not. That is for "Why doesn't prefixing a command with TERM=xterm work in a container while it does in Lubuntu?"
  
  – Tim
  21 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Because you missed the -t after exec. So no terminal was associated with the exec. So top said "no terminal"
  
  – Stephen Harris
  21 hours ago
  

  
  
  
  

add a comment | 

How shall I find out all the terminal types that can work?

On Lubunu 18.04, The followings work

$ TERM=xterm top

$ TERM=vt100 top

but the following don't:

$ TERM=lxterminal top

'lxterminal': unknown terminal type.

$ TERM= top

TERM environment variable not set.

The following returns nothing, which is said to give all the terminal types that can work

$ toe

In a docker container, the following works

$ sudo docker exec -t 851 top



$ sudo docker exec -t 851 env

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

HOSTNAME=851fbf59c6da

TERM=xterm

HOME=/root

but why do the following don't

$ sudo docker exec 851 top

TERM environment variable not set.



$ sudo docker exec 851 bash -c "TERM=xterm top"

top: failed tty get



$ sudo docker exec 851 env

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

HOSTNAME=851fbf59c6da

HOME=/root

Why doesn't prefixing a command with TERM=xterm work in a container while it does in Lubuntu?

Thanks.

terminal docker

share|improve this question

edited 21 hours ago

Tim

asked 21 hours ago

TimTim

28.4k79269491

$ TERM=xterm top

$ TERM=vt100 top

$ TERM=lxterminal top

'lxterminal': unknown terminal type.

$ TERM= top

TERM environment variable not set.

$ toe

$ sudo docker exec -t 851 top



$ sudo docker exec -t 851 env

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

HOSTNAME=851fbf59c6da

TERM=xterm

HOME=/root

$ sudo docker exec 851 top

TERM environment variable not set.



$ sudo docker exec 851 bash -c "TERM=xterm top"

top: failed tty get



$ sudo docker exec 851 env

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

HOSTNAME=851fbf59c6da

HOME=/root

share|improve this question

edited 21 hours ago

Tim

asked 21 hours ago

TimTim

28.4k79269491

share|improve this question

edited 21 hours ago

Tim

asked 21 hours ago

TimTim

28.4k79269491

asked 21 hours ago

TimTim

28.4k79269491

asked 21 hours ago

TimTim

28.4k79269491

1 Answer
1

active

oldest

votes

1

The ncurses-bin package includes toe, which lists terminal descriptions.

As for which work, that's accomplished by reading the documentation for the terminal, which should tell you what it does.

share|improve this answer

answered 21 hours ago

Thomas DickeyThomas Dickey

54.2k5106179

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  toe returns nothing. How does it explain why some works, some don't?
  
  – Tim
  21 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  you gotta read the manual page, which answers this "toe returns nothing". That's not the documentation for your terminal.
  
  – Thomas Dickey
  21 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks. (1) How can I find out what is my terminal and what is the documenation for my terminal? (2) by reading the manpage, do you mean I should run toe -a? (3) man toe says "With no options, toe lists all available terminal types by primary name with descriptions", what does it mean by "all available terminal types by primary name with descriptions"?
  
  – Tim
  20 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Actually none of the answers are very good, but this question gives some hints. There are other questions asking related things, but I don't see any that are useful.
  
  – Thomas Dickey
  11 hours ago
  

  
  
  
  

add a comment | 

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1

The ncurses-bin package includes toe, which lists terminal descriptions.

As for which work, that's accomplished by reading the documentation for the terminal, which should tell you what it does.

share|improve this answer

answered 21 hours ago

Thomas DickeyThomas Dickey

54.2k5106179

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  toe returns nothing. How does it explain why some works, some don't?
  
  – Tim
  21 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  you gotta read the manual page, which answers this "toe returns nothing". That's not the documentation for your terminal.
  
  – Thomas Dickey
  21 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks. (1) How can I find out what is my terminal and what is the documenation for my terminal? (2) by reading the manpage, do you mean I should run toe -a? (3) man toe says "With no options, toe lists all available terminal types by primary name with descriptions", what does it mean by "all available terminal types by primary name with descriptions"?
  
  – Tim
  20 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Actually none of the answers are very good, but this question gives some hints. There are other questions asking related things, but I don't see any that are useful.
  
  – Thomas Dickey
  11 hours ago
  

  
  
  
  

add a comment | 

1

The ncurses-bin package includes toe, which lists terminal descriptions.

As for which work, that's accomplished by reading the documentation for the terminal, which should tell you what it does.

share|improve this answer

answered 21 hours ago

Thomas DickeyThomas Dickey

54.2k5106179

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  toe returns nothing. How does it explain why some works, some don't?
  
  – Tim
  21 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  you gotta read the manual page, which answers this "toe returns nothing". That's not the documentation for your terminal.
  
  – Thomas Dickey
  21 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks. (1) How can I find out what is my terminal and what is the documenation for my terminal? (2) by reading the manpage, do you mean I should run toe -a? (3) man toe says "With no options, toe lists all available terminal types by primary name with descriptions", what does it mean by "all available terminal types by primary name with descriptions"?
  
  – Tim
  20 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Actually none of the answers are very good, but this question gives some hints. There are other questions asking related things, but I don't see any that are useful.
  
  – Thomas Dickey
  11 hours ago
  

  
  
  
  

add a comment | 

The ncurses-bin package includes toe, which lists terminal descriptions.

As for which work, that's accomplished by reading the documentation for the terminal, which should tell you what it does.

share|improve this answer

answered 21 hours ago

Thomas DickeyThomas Dickey

54.2k5106179

share|improve this answer

answered 21 hours ago

Thomas DickeyThomas Dickey

54.2k5106179

answered 21 hours ago

Thomas DickeyThomas Dickey

54.2k5106179

answered 21 hours ago

Thomas DickeyThomas Dickey

54.2k5106179