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  • 1 (2019-01-26 (土) 14:20:09)
  • 2 (2019-01-31 (木) 14:18:08)
  • 3 (2019-12-12 (木) 17:08:58)

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Linux tips †

Environmental setting †

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 †

vmstat

cat /proc/cpuinfo 

cat /proc/meminfo