Man page requires space to scroll, not arrow keys





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On my Ubuntu 18.04 host, running man <command> brings up the man page and I can scroll up and down using the corresponding arrow keys to read the text.



On a fresh Ubuntu 18.04 docker image, I installed man, man-db, vim and core-utils and now I can only scroll down using the space bar.



Additionally, the man page in the docker container shows --MORE-- in the bottom left corner while on my host it shows:



Manual page <COMMAND>(<INT>) line <INT> (press h for help or q to quit)


in the bottom left corner.



I have the same version of man on both the host and my docker image (man 2.8.3)



What do I need to install in my docker image to allow man to scroll using arrow keys similar to how I do on my host OS?





EDIT -- Additional output from the docker container



root@11aa9a0948e7:~# man --version
man 2.8.3
root@11aa9a0948e7:~# echo $MANPAGER

root@11aa9a0948e7:~# echo $PAGER

root@11aa9a0948e7:~# update-alternatives --query pager
Name: pager
Link: /usr/bin/pager
Slaves:
pager.1.gz /usr/share/man/man1/pager.1.gz
Status: auto
Best: /bin/more
Value: /bin/more

Alternative: /bin/more
Priority: 50
Slaves:
pager.1.gz /usr/share/man/man1/more.1.gz


Same output from the Host OS



user@host:~$ man --version
man 2.8.3
user@host:~$ echo $MANPAGER

user@host:~$ echo $PAGER

user@host:~$ update-alternatives --query pager
Name: pager
Link: /usr/bin/pager
Slaves:
pager.1.gz /usr/share/man/man1/pager.1.gz
Status: auto
Best: /bin/less
Value: /bin/less

Alternative: /bin/less
Priority: 77
Slaves:
pager.1.gz /usr/share/man/man1/less.1.gz

Alternative: /bin/more
Priority: 50
Slaves:
pager.1.gz /usr/share/man/man1/more.1.gz









share|improve this question

























  • @steeldriver output has been added to the question.

    – Wimateeka
    Mar 25 at 14:41


















0















On my Ubuntu 18.04 host, running man <command> brings up the man page and I can scroll up and down using the corresponding arrow keys to read the text.



On a fresh Ubuntu 18.04 docker image, I installed man, man-db, vim and core-utils and now I can only scroll down using the space bar.



Additionally, the man page in the docker container shows --MORE-- in the bottom left corner while on my host it shows:



Manual page <COMMAND>(<INT>) line <INT> (press h for help or q to quit)


in the bottom left corner.



I have the same version of man on both the host and my docker image (man 2.8.3)



What do I need to install in my docker image to allow man to scroll using arrow keys similar to how I do on my host OS?





EDIT -- Additional output from the docker container



root@11aa9a0948e7:~# man --version
man 2.8.3
root@11aa9a0948e7:~# echo $MANPAGER

root@11aa9a0948e7:~# echo $PAGER

root@11aa9a0948e7:~# update-alternatives --query pager
Name: pager
Link: /usr/bin/pager
Slaves:
pager.1.gz /usr/share/man/man1/pager.1.gz
Status: auto
Best: /bin/more
Value: /bin/more

Alternative: /bin/more
Priority: 50
Slaves:
pager.1.gz /usr/share/man/man1/more.1.gz


Same output from the Host OS



user@host:~$ man --version
man 2.8.3
user@host:~$ echo $MANPAGER

user@host:~$ echo $PAGER

user@host:~$ update-alternatives --query pager
Name: pager
Link: /usr/bin/pager
Slaves:
pager.1.gz /usr/share/man/man1/pager.1.gz
Status: auto
Best: /bin/less
Value: /bin/less

Alternative: /bin/less
Priority: 77
Slaves:
pager.1.gz /usr/share/man/man1/less.1.gz

Alternative: /bin/more
Priority: 50
Slaves:
pager.1.gz /usr/share/man/man1/more.1.gz









share|improve this question

























  • @steeldriver output has been added to the question.

    – Wimateeka
    Mar 25 at 14:41














0












0








0








On my Ubuntu 18.04 host, running man <command> brings up the man page and I can scroll up and down using the corresponding arrow keys to read the text.



On a fresh Ubuntu 18.04 docker image, I installed man, man-db, vim and core-utils and now I can only scroll down using the space bar.



Additionally, the man page in the docker container shows --MORE-- in the bottom left corner while on my host it shows:



Manual page <COMMAND>(<INT>) line <INT> (press h for help or q to quit)


in the bottom left corner.



I have the same version of man on both the host and my docker image (man 2.8.3)



What do I need to install in my docker image to allow man to scroll using arrow keys similar to how I do on my host OS?





EDIT -- Additional output from the docker container



root@11aa9a0948e7:~# man --version
man 2.8.3
root@11aa9a0948e7:~# echo $MANPAGER

root@11aa9a0948e7:~# echo $PAGER

root@11aa9a0948e7:~# update-alternatives --query pager
Name: pager
Link: /usr/bin/pager
Slaves:
pager.1.gz /usr/share/man/man1/pager.1.gz
Status: auto
Best: /bin/more
Value: /bin/more

Alternative: /bin/more
Priority: 50
Slaves:
pager.1.gz /usr/share/man/man1/more.1.gz


Same output from the Host OS



user@host:~$ man --version
man 2.8.3
user@host:~$ echo $MANPAGER

user@host:~$ echo $PAGER

user@host:~$ update-alternatives --query pager
Name: pager
Link: /usr/bin/pager
Slaves:
pager.1.gz /usr/share/man/man1/pager.1.gz
Status: auto
Best: /bin/less
Value: /bin/less

Alternative: /bin/less
Priority: 77
Slaves:
pager.1.gz /usr/share/man/man1/less.1.gz

Alternative: /bin/more
Priority: 50
Slaves:
pager.1.gz /usr/share/man/man1/more.1.gz









share|improve this question
















On my Ubuntu 18.04 host, running man <command> brings up the man page and I can scroll up and down using the corresponding arrow keys to read the text.



On a fresh Ubuntu 18.04 docker image, I installed man, man-db, vim and core-utils and now I can only scroll down using the space bar.



Additionally, the man page in the docker container shows --MORE-- in the bottom left corner while on my host it shows:



Manual page <COMMAND>(<INT>) line <INT> (press h for help or q to quit)


in the bottom left corner.



I have the same version of man on both the host and my docker image (man 2.8.3)



What do I need to install in my docker image to allow man to scroll using arrow keys similar to how I do on my host OS?





EDIT -- Additional output from the docker container



root@11aa9a0948e7:~# man --version
man 2.8.3
root@11aa9a0948e7:~# echo $MANPAGER

root@11aa9a0948e7:~# echo $PAGER

root@11aa9a0948e7:~# update-alternatives --query pager
Name: pager
Link: /usr/bin/pager
Slaves:
pager.1.gz /usr/share/man/man1/pager.1.gz
Status: auto
Best: /bin/more
Value: /bin/more

Alternative: /bin/more
Priority: 50
Slaves:
pager.1.gz /usr/share/man/man1/more.1.gz


Same output from the Host OS



user@host:~$ man --version
man 2.8.3
user@host:~$ echo $MANPAGER

user@host:~$ echo $PAGER

user@host:~$ update-alternatives --query pager
Name: pager
Link: /usr/bin/pager
Slaves:
pager.1.gz /usr/share/man/man1/pager.1.gz
Status: auto
Best: /bin/less
Value: /bin/less

Alternative: /bin/less
Priority: 77
Slaves:
pager.1.gz /usr/share/man/man1/less.1.gz

Alternative: /bin/more
Priority: 50
Slaves:
pager.1.gz /usr/share/man/man1/more.1.gz






command-line 18.04 docker manpage






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edited Mar 25 at 14:47







Wimateeka

















asked Mar 25 at 14:32









WimateekaWimateeka

1157




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  • @steeldriver output has been added to the question.

    – Wimateeka
    Mar 25 at 14:41



















  • @steeldriver output has been added to the question.

    – Wimateeka
    Mar 25 at 14:41

















@steeldriver output has been added to the question.

– Wimateeka
Mar 25 at 14:41





@steeldriver output has been added to the question.

– Wimateeka
Mar 25 at 14:41










1 Answer
1






active

oldest

votes


















3














You system uses more as page for man while a standard Ubuntu installation uses less.



Install the package less






share|improve this answer
























  • Worked like a charm. I did so as soon as I noticed that less was installed as a pager. Thanks!

    – Wimateeka
    Mar 25 at 14:48












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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









3














You system uses more as page for man while a standard Ubuntu installation uses less.



Install the package less






share|improve this answer
























  • Worked like a charm. I did so as soon as I noticed that less was installed as a pager. Thanks!

    – Wimateeka
    Mar 25 at 14:48
















3














You system uses more as page for man while a standard Ubuntu installation uses less.



Install the package less






share|improve this answer
























  • Worked like a charm. I did so as soon as I noticed that less was installed as a pager. Thanks!

    – Wimateeka
    Mar 25 at 14:48














3












3








3







You system uses more as page for man while a standard Ubuntu installation uses less.



Install the package less






share|improve this answer













You system uses more as page for man while a standard Ubuntu installation uses less.



Install the package less







share|improve this answer












share|improve this answer



share|improve this answer










answered Mar 25 at 14:44









Florian DieschFlorian Diesch

66k16168183




66k16168183













  • Worked like a charm. I did so as soon as I noticed that less was installed as a pager. Thanks!

    – Wimateeka
    Mar 25 at 14:48



















  • Worked like a charm. I did so as soon as I noticed that less was installed as a pager. Thanks!

    – Wimateeka
    Mar 25 at 14:48

















Worked like a charm. I did so as soon as I noticed that less was installed as a pager. Thanks!

– Wimateeka
Mar 25 at 14:48





Worked like a charm. I did so as soon as I noticed that less was installed as a pager. Thanks!

– Wimateeka
Mar 25 at 14:48


















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