linux命令备忘

1. tar

tar -xvlf OpenCV-2.3.1a.tar.bz2

tar -xvzf OpenCV-2.3.1a.tar.gz

tar -cvzf test.tar.gz ./folder/

2. alias

vim ~/.bashrc

alias openpdf='xdg-open'
source ~/.bashrc 或者再开一个标签页

3. latex

pdflatex example.tex

openpdf example.pdf