[tech] linux env configure

there's been 1 month since I began using the garbage server in kiz. the admin is really an idiot!!!

I were stuck in so many places! that's one of the reason to open this blog, which is to keep record of how I solve them and the what I learn from try & err.

OK, this is the 1st blood. record some env configuration tips.

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• commands used to see the env
• env

env  -run a program in a modified environment

one can use it to set/unset/ignore some specified env variables. also, one can see all user-vars by just run env .

usually I choose to export vars in profile/shrc.

• set/unset

see or set shell-vars/ unset specific shell-vars

• variables usually modified

export PATH =$HOME/bin:$PATH # usually local software version is higher than home ones, so put the original PATH in the end
export C_INCLUDE_PATH=$HOME/include:$C_INCLUDE_PATH # sometimes one needs to add the home path too
export CPLUS_INCLUDE_PATH=$HOME/include:$CPLUS_INCLUDE_PATH
export LD_LIBRARY_PATH=$HOME/lib:$LD_LIBRARY_PATH # dynamic lib (xxx.so)
export LIBRARY_PATH=$HOME/lib:$LIBRARY_PATH # static lib (xxx.a)
export PKG_CONFIG_PATH=$HOME/lib/pkgconfig:$PKG_CONFIG_PATH
export MANPATH=$HOME/man:/$HOME/share/man:$MANPATH

 

• personalized configuration (bash)

PS1="\[\e[32;1m\]\u@\[\e[32;1m\]\H\[\e[34;1m\] \W $ \[\e[0m\]"
export LS_COLORS="di=01;34:ln=01;36:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:su=37;41:sg=30;43:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lz=01;31:*.xz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.axv=01;35:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.pdf=00;32:*.ps=00;32:*.txt=00;32:*.patch=00;32:*.diff=00;32:*.log=00;32:*.tex=00;32:*.doc=00;32:*.aac=00;36:*.au=00;36:*.flac=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.axa=00;36:*.oga=00;36:*.spx=00;36:*.xspf=00;36:"; # make display colorful when ls

 check 256 colors

for i  in `seq 1 255`;  do printf "\e[38;5;%sm %s\t" $i $i;done;echo ""

 

Ref: Enhancing the system prompt

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转载于:https://www.cnblogs.com/Dicor/p/3452822.html