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

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*Linux tips [#ie40dc7a]
** Useful link(s) [#l5556494]
[[37 Important Linux Commands You Should Know>https://www.howtogeek.com/412055/37-important-linux-commands-you-should-know/]]
**Environmental setting [#k4e29c9d]
Create ".bash_profile" in the home directory and write the following, if not exist.
 vi ~/.bash_profile
In .bash_profile:
Create and edit ".bash_profile" in the home directory by using your favorite editor, if not exist. For instance:
 $ vi ~/.bash_profile
and add the following lines to ~/.bash_profile:
 if [ -f ~/.bashrc ]; then
         . ~/.bashrc
 fi
Create ".bashrc" in the homedirectory to set prompt, add command line path, and so on.
Create ".bashrc" in the home directory to set the prompt, add command-line path, and so on (optional).
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:${HOME}/qe-6.1.0/PW/tools
and type
 source ~/.bashrc
 export PATH=${PATH}:${HOME}/qe-6.2.1/bin:${HOME}/qe-6.2.1/PW/tools
(change path to and directory name for your QE program ("qe-6.2.1" for instance) as appropriate) and type
 $ source ~/.bashrc
to make the change.
**Information of CPU/memory [#qdfd770f]
 vmstat
 cat /proc/cpuinfo 
 cat /proc/meminfo