列出系統中所安裝的 R Package

!/bin/bash
#list  all  R  packages

for  i  in /home/*/R/x86_64-pc-linux-gnu-library/*/*  /usr/local/lib/R/site-library/*  /usr/lib/R/site-library/*  /usr/lib/R/library/*;  do  [  -e  "$i"  ]&&basename $i;done |sort|uniq