1. If you want to add environment variables under Linux, execute VIM ~/The bashrc command has the following error:
2. Execute sudo apt update first to see what happens
3. Execute sudo apt install — reinstall command not found
4. Finally, execute sudo sudo chmod -R o+r /var/lib/command-not-found/ to successfully solve the problem!
Error when starting Zeppelin Zeppelin process died [FAILED]
That’s because your environment variable/etc/profile Zeppelin is configured in_ Home, but the path is wrong
Zeppelin documentation:
Zeppelin · YuQue
Blog background
The author has always wanted to understand how to use the Print command under Linux?
Direct Print hello. TXT will report an error
Error: no "print" mailcap rules found for type "text/plain"
Specific operation
ubuntu@139:~/temp $ cat /etc/mailcap | egrep print
application/x-troff-man; /usr/bin/nroff -mandoc -Tutf8; copiousoutput; print=/usr/bin/nroff -mandoc -Tutf8 | print text/plain:-
text/troff; /usr/bin/nroff -mandoc -Tutf8; copiousoutput; print=/usr/bin/nroff -mandoc -Tutf8 | print text/plain:-
text/plain; view %s; edit=vim %s; compose=vim %s; test=test -x /usr/bin/vim; print=cat %s; needsterminal
application/x-tar; /bin/tar tvf '%s'; print=/bin/tar tvf - | print text/plain:-; copiousoutput
application/x-gtar; /bin/tar tvf '%s'; print=/bin/tar tvf - | print text/plain:-; copiousoutput
application/x-ustar; /bin/tar tvf '%s'; print=/bin/tar tvf - | print text/plain:-; copiousoutput
ubuntu@139:~/temp $ ls
hello hi.txt
ubuntu@139:~/temp $ cat hi.txt
hello
ubuntu@139:~/temp $ print hi.txt
hello
This is the situation after I edit the mailcap file. Pay attention to this line
text/plain; view %s; edit=vim %s; compose=vim %s; test=test -x /usr/bin/vim; print=cat %s; needsterminal
That is, just add a print command rule after text/plain, which is so simple.
1 click let cmake detect
/Applications/CLion.app/Contents/bin/cmake/mac/bin/cmake -DCMAKE_BUILD_TYPE=Debug -G "CodeBlocks - Unix Makefiles" /Users/apple/CLionProjects/untitled16
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc - broken
CMake Error at /Applications/CLion.app/Contents/bin/cmake/mac/share/cmake-3.17/Modules/CMakeTestCCompiler.cmake:60 (message):
The C compiler
"/usr/bin/cc"
is not able to compile a simple test program.
It fails with the following output:
Change Dir: /Users/apple/CLionProjects/untitled16/cmake-build-debug/CMakeFiles/CMakeTmp
Run Build Command(s):xxxx(can not find /Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/numpy/core/include:)
2 view environment variables
cd ~
vim .bash_profile
It is found that the error path is cflags (I wonder why I set cflags to be a python library?) Solution: comment out this line of code. Result: Although there is no error message in red in this interface, the program still cannot be compiled
Replace c compiler [key to solving the problem]
View all gcc compiler paths
brew list gcc/usr/local/Cellar/gcc/11.2.0/bin/c++-11
/usr/local/Cellar/gcc/11.2.0/bin/cpp-11
/usr/local/Cellar/gcc/11.2.0/bin/g++-11
/usr/local/Cellar/gcc/11.2.0/bin/gcc-11
/usr/local/Cellar/gcc/11.2.0/bin/gcc-ar-11
/usr/local/Cellar/gcc/11.2.0/bin/gcc-nm-11
/usr/local/Cellar/gcc/11.2.0/bin/gcc-ranlib-11
/usr/local/Cellar/gcc/11.2.0/bin/gcov-11
/usr/local/Cellar/gcc/11.2.0/bin/gcov-dump-11
/usr/local/Cellar/gcc/11.2.0/bin/gcov-tool-11
/usr/local/Cellar/gcc/11.2.0/bin/gdc
/usr/local/Cellar/gcc/11.2.0/bin/gdc-11
/usr/local/Cellar/gcc/11.2.0/bin/gfortran
/usr/local/Cellar/gcc/11.2.0/bin/gfortran-11
/usr/local/Cellar/gcc/11.2.0/bin/lto-dump-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-c++-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-g++-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gcc-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gcc-11.2.0
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gcc-ar-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gcc-nm-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gcc-ranlib-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gdc-11
/usr/local/Cellar/gcc/11.2.0/bin/x86_64-apple-darwin20-gfortran-11
/usr/local/Cellar/gcc/11.2.0/include/c++/ (796 files)
/usr/local/Cellar/gcc/11.2.0/lib/gcc/ (1304 files)
/usr/local/Cellar/gcc/11.2.0/libexec/gcc/ (15 files)
/usr/local/Cellar/gcc/11.2.0/share/gcc-11.2.0/ (4 files)
/usr/local/Cellar/gcc/11.2.0/share/man/ (12 files)
C compiler and C + + compiler use respectively:
/usr/local/Cellar/gcc/11.2.0/bin/gcc-11
/usr/local/Cellar/gcc/11.2.0/bin/g++-11
After selection, Clion automatically compiles and succeeds.
When executing the script, an error message pops up:
/bin/sh^M: Corrupt interpreter: No that file or directoryThis is because the script file is saved in DOS file format. You can open the file with vim and then perform the following operations:
Solution:
:set ff=unix
:wq
1. First determine whether you have installed eigen3
If not, use the following command to install:
sudo apt-get install libeigen3-dev
2. The installation directory is inconsistent with the directory specified in cmakelists.txt
The default installation directory in cmakelists.txt is as follows:
modify it to the correct path
the final running success is as follows:
Reference article:
take you step by step to install the most difficult VIM plug-in in history: youcompleteme
VIM plug-in: minimalist VIM plug-in manager
Installation method
Input: curl – flo ~ /. VIM/autoload at the terminal/ plug.vim –create-dirs https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim Open VIM
Enter “: source ~ /. Vimrc” at the command line
Enter “: pluginstall” at the command line to install youcompleteme, which takes a long time. Please wait patiently for YCM to be compiled and installed_ core
mkdir ~/.ycm_ build
cd ~/.ycm_ build
cmake -G “Unix Makefiles” . ~/.vim/plugged/YouCompleteMe/third_ party/ycmd/cpp
cmake –build . –target ycm_ core –config Release
Supplement: VIM prompts the debugging method of the ycmd server shut down:
Select log through ycmtogglelogs to view errors
For example, the solution of no module named watchdog: PIP3 install watchdog
MacBook Air command not found. This may have been caused by modifying the Profile when configuring Java Path.
: ls CD, vim, sudo, man command not found
1. First, enter commands so that you can use commands such as Vim temporarily
export PATH=/usr/bin:/usr/sbin:/bin:/sbin:/usr/X11R6/bin
Then open ~/.bash_profile
vim ~/.bash_profile
2. Add PATH
export PATH="/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:${JAVA_HOME}:${JAVA_HOME}/bin"
3. Restart Profile
source ~/.bash_profile
Exit Terminal, open it again, and type Vim to see if it works
Replacement string
Global, replace string:
Command mode :% s/old/new/g
Old, new does not need double quotes, g is global, without g is the first line to be changed example: % s/test_shm_tool.c/$(SOURCE)/g local, replace string:
: n1, n2 s/old_str/new_str/g, add c if each line is confirmed
In normal mode u undo CTRL + R reverse undo
In a very simple example, when writing shell scripts, you want to use :s in the Vim editor to implement the substitution function.
I used s/SCORE/1/g
SCORE exists in the script, but the error pattern not found is reported.
Look at this and the result is going to be
s –> %s
g –> ge
%s/SCORE/1/ge
It does, because S will search only on the current row, and %s is needed to replace it throughout the script