*Linux tips [#ie40dc7a] **Environmental setting [#k4e29c9d] Create ".bash_profile" in the home directory and write the following, if not exist. vi ~/.bash_profile In .bash_profile: if [ -f ~/.bashrc ]; then . ~/.bashrc fi Create ".bashrc" in the homedirectory to set prompt, add command line path, and so on. Below is an example of ".bashrc" if [ "$PS1" ]; then # enable color support of ls and also add handly aliases #eval `dircolors` #alias ls='ls -F --color=auto' alias ls='ls -FG' alias ll='ls -l' alias la='ls -A' alias cp='cp -i' alias mv='mv -i' alias rm='rm -i' # set a fancy prompt PS1='\u@\h:\w\$ ' fi To add a command search path, add the following (for instance) to ~/.bashrc export PATH=${PATH}:${HOME}/qe-6.1.0/bin:${HOME}/qe-6.1.0/PW/tools and type source ~/.bashrc to make the change. **Information of CPU/memory [#qdfd770f] vmstat cat /proc/cpuinfo cat /proc/meminfo