Misc
Unix
Download from urls:
wget -r -l 10 -k –no-parent [url address]
Change screenshots save location:
defaults write com.apple.screencapture location [folder location]
View old commands. Can also do a "CTRL+R" to check history:
history
Changed file permissions with "chmod", x for exec, u for user
chmod u+x file1
Use "\" character to split a command over multiple lines
chmod u+x \
file1
Set alias
alias jemdoc='/Applications/jemdoc'
Add a path to PATH
PATH=$PATH:~/opt/bin:~/opt/node/bin
Jemdoc
Compile Jemdoc file
jemdoc -c mysite.conf *.jemdoc
Github
Authentication
go to Settings -> Developer settings -> Personal access tokens -> generate new token copy-paste the new token in terminal after “git push”
Status
git status
Add
git add –all
Commit
git commit -a -m “first commit message”
Push
git push
python venv
Create a new virtual environment inside the directory/project1
cd project1/
python3 -m venv project1/
Activate this environment’s packages/resources in isolation
source project1/bin/activate
Deactivate
(project1) $ deactivate
\-I and -L
-L is the path to the directories containing the libraries. A search path for libraries
-l is the name of the library you want to link to
For example PKG_LIBS = -I$/usr/Rcpp/libs -lRcpp where the name of the library “Rcpp.so”, it is named with the -lRcpp option
-I adds a directory to the list of places searched by the compiler for a file named on a #include line
For example PKG_CXXFLAGS = -I$/usr/Rcpp/include
\-D
The contents of definition are tokenized and processed as if they appeared during translation phase three in a \#define directive. In particular, the definition will be truncated by embedded newline characters
For example, the usage of -DREMOVE_ in the compilation of the SPAMS package