dongjoon-hyun commented on a change in pull request #25345: [SPARK-28609][DOC] 
Fix broken styles/links and make up-to-date
URL: https://github.com/apache/spark/pull/25345#discussion_r310394742
 
 

 ##########
 File path: docs/building-spark.md
 ##########
 @@ -241,8 +241,8 @@ The run-tests script also can be limited to a specific 
Python version or a speci
 
 To run the SparkR tests you will need to install the 
[knitr](https://cran.r-project.org/package=knitr), 
[rmarkdown](https://cran.r-project.org/package=rmarkdown), 
[testthat](https://cran.r-project.org/package=testthat), 
[e1071](https://cran.r-project.org/package=e1071) and 
[survival](https://cran.r-project.org/package=survival) packages first:
 
-    R -e "install.packages(c('knitr', 'rmarkdown', 'devtools', 'e1071', 
'survival'), repos='https://cloud.r-project.org/')"
-    R -e "devtools::install_version('testthat', version = '1.0.2', 
repos='https://cloud.r-project.org/')"
+    Rscript -e "install.packages(c('knitr', 'rmarkdown', 'devtools', 'e1071', 
'survival'), repos='https://cloud.r-project.org/')"
+    Rscript -e "devtools::install_version('testthat', version = '1.0.2', 
repos='https://cloud.r-project.org/')"
 
 Review comment:
   Thanks. Got it~

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