On my machine (Ubuntu 18.04), I am able to view
man pages normally in the console.
However, I cannot seem to get
man --html (
man -H) or
man --gxditview (
man -X) to work.
Might anyone have any inklings as to what is wrong?
- https://askubuntu.com/a/339268/692420 - Found this to realize I needed
sudo apt install groff.
- https://bbs.archlinux.org/viewtopic.php?id=238227 - Mentions
MAN_DISABLE_SECCOMP, but I tried it out and didn't seem to change my issue.
- Reinstall man pages & fix man - This mentions reinstalling packages, but this user wasn't even able to view
man cpon the console.
- For other posts that I've searched and found, they just had issues with their
DISPLAY. In this case, I feel that I've discounted that possibility by opening up
gxditviewjust fine on their own.
I'm guessing that I could use something like
man2html in other posts, but if possible, would prefer to know how to fix the "builtin" setup first.
yelp man:cp, suggested from the above-linked post, which looks uber nice, so will probably stick with that for now (but hope that xref's are there...)
I have "minimized" my environment variables using the following command:
$ alias bash-isolate='env -i HOME=$HOME DISPLAY=$DISPLAY SHELL=$SHELL TERM=$TERM USER=$USER PATH=/usr/local/bin:/usr/bin:/bin bash --norc' $ bash-isolate # In isolated session $ env | sort DISPLAY=:1 HOME=/home/eacousineau PATH=/usr/local/bin:/usr/bin:/bin PWD=/home/eacousineau SHELL=/bin/bash SHLVL=1 TERM=screen USER=eacousineau _=/usr/bin/env
All of my examples will be posted starting from this environment.
Here's showing that
man normally works:
$ man cp | head -n 4 CP(1) User Commands CP(1) NAME cp - copy files and directories
However, when I try to call
man --html=/usr/bin/firefox or
man --gxditview, I get the following:
$ which groff /usr/bin/groff $ firefox # A window opens up fine and dandy. $ man --html=/usr/bin/firefox cp Unable to init server: Could not connect: Connection refused Error: cannot open display: :1 man: couldn't execute any browser from /usr/bin/firefox $ gxditview # A window opens up fine and dandy, also. $ man --gxditview cp groff: gxditview: Signal 31 (core dumped) man: command exited with status 1: (cd /usr/share/man && /usr/lib/man-db/zsoelim) | (cd /usr/share/man && /usr/lib/man-db/manconv -f UTF-8:ISO-8859-1 -t UTF-8//IGNORE) | (cd /usr/share/man && preconv -e UTF-8) | (cd /usr/share/man && tbl) | (cd /usr/share/man && groff -mandoc -TX75 -X)
If I run the same commands, but precede them with
export MAN_DISABLE_SECCOMP=1, I see no difference in behavior:
$ export MAN_DISABLE_SECCOMP=1 $ env | sort DISPLAY=:1 HOME=/home/eacousineau MAN_DISABLE_SECCOMP=1 PATH=/usr/local/bin:/usr/bin:/bin PWD=/home/eacousineau SHELL=/bin/bash SHLVL=1 TERM=screen USER=eacousineau _=/usr/bin/env $ man --html=/usr/bin/firefox cp # Same as above. $ man --gxditview cp # Same as above.
I also tried haphazardly using
xhost + and
xhost +local:root (and quickly calling
xhost - /
xhost -local:root and terminating those sessions thereafter), but found the same behavior.