erlang节点之间的文件传输
# file:read_file/write_file
XML解析
# xmerl
Erlang中字符串的处理
# string
# io_lib
# re
# lists
when I start erl in the terminal as root, there is a warning:
'no display name and no $DISPLAY environment variable'.
# export DISPLAY=:0.0
1> tv:start().
<0.34.0>
2> No protocol specified
Application initialization failed: couldn't connect to display ":0"
No protocol specified
Error in startup script: couldn't connect to display ":0"
while executing
"load /usr/lib/libtk8.4.so.0 Tk"
("package ifneeded" script)
invoked from within
"package require Tk 8.3"
(file "/usr/local/lib/erlang/lib/gs-1.5.11/priv/gstk.tcl" line 7)
Try merging Xauthority file first:
[b]> sudo xauth -f /root/.Xauthority merge .Xauthority[/b]
Now you can run gui as root
> sudo gui
# file:read_file/write_file
XML解析
# xmerl
Erlang中字符串的处理
# string
# io_lib
# re
# lists
when I start erl in the terminal as root, there is a warning:
'no display name and no $DISPLAY environment variable'.
# export DISPLAY=:0.0
1> tv:start().
<0.34.0>
2> No protocol specified
Application initialization failed: couldn't connect to display ":0"
No protocol specified
Error in startup script: couldn't connect to display ":0"
while executing
"load /usr/lib/libtk8.4.so.0 Tk"
("package ifneeded" script)
invoked from within
"package require Tk 8.3"
(file "/usr/local/lib/erlang/lib/gs-1.5.11/priv/gstk.tcl" line 7)
Try merging Xauthority file first:
[b]> sudo xauth -f /root/.Xauthority merge .Xauthority[/b]
Now you can run gui as root
> sudo gui
本文探讨了在使用root权限启动Erlang时遇到GUI显示问题的原因,并提供了详细的解决方案,包括设置显示环境变量和使用Xauthority文件进行权限配置。
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