diff --git a/stocks.txt b/stocks.txt
new file mode 100644
index 0000000..d66df24
--- /dev/null
+++ b/stocks.txt
@@ -0,0 +1,2 @@
+2330
+2454
diff --git a/test-bash.sh b/test-bash.sh
new file mode 100644
index 0000000..fa13743
--- /dev/null
+++ b/test-bash.sh
@@ -0,0 +1 @@
+for i in `seq 1 10`; do echo a$i; done
diff --git a/test-dplyr-ggplot2.R b/test-dplyr-ggplot2.R
new file mode 100644
index 0000000..b48d4ec
--- /dev/null
+++ b/test-dplyr-ggplot2.R
@@ -0,0 +1,28 @@
+library(readr)
+titanic <- read_csv("https://raw.githubusercontent.com/haven-jeon/introduction_to_most_usable_pkgs_in_project/master/bicdata/data/titanic.csv",
+                    col_types = cols(survived = col_character()))
+
+
+library(dplyr)
+library(tidyr)
+library(magrittr)
+library(ggplot2)
+
+dim(titanic)
+titanic %>% dim
+
+# select sex, count(*) as N from titanic group by sex
+titanic %>% group_by(sex) %>% summarise(N=n())
+summarise(group_by(titanic,sex),N=n())
+
+# select sex, survived, count(*) as N from titanic group by sex, survived 
+titanic %>% group_by(sex,survived) %>% summarise(N=n())
+
+titanic %>% 
+  ggplot(mapping = aes(x=sex)) + 
+  geom_bar() + facet_grid(survived~pclass)
+
+
+titanic %>% 
+  ggplot(mapping = aes(x=sex,fill=survived)) + 
+  geom_bar()
diff --git a/test-get-all-stocks.sh b/test-get-all-stocks.sh
new file mode 100644
index 0000000..ea86ef0
--- /dev/null
+++ b/test-get-all-stocks.sh
@@ -0,0 +1,2 @@
+for stock in $(cat stocks.txt); do STOCK_ID=$stock Rscript.exe test-exe-getStockMajorData.R; done
+