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Create 160804117 倪永炜 #130

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65 changes: 65 additions & 0 deletions 160804117 倪永炜
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exercise1
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+# 1.Create a file called message.txt in your home directory and move it into another directory.
+
+touch /home/message.txt
+mv /home/message.txt distination
+
+# 2.Copy the message.txt you just moved into your home directory.
+
+cp message.txt /home/message.txt
+
+# 3.Delete both copies of message.txt. Try to do this without using rm.
+
+unlink message.txt && unlink /home/message.txt

exercise2
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+# Create a new directory called workbench in your home directory.
+mkdir /home/workbench
+
+# Without changing directories create a file called readme.txt inside of workbench.
+vim /home/workbench/readme.txt
+esc + :wq
+
+# Append the numbers 1, 2, and 3 to readme.txt so that each number appears on it’s own line.
+echo -e "1\n2\n3" > /home/workbench/readme.txt
+
+# Print readme.txt to the command line.
+cat -n readme.txt
+
+# Use output redirection to create a new file in the workbench directory called list.txt which lists the files and folders in your home directory.
+touch workbench/list.txt
+ls /home > /home/workbench/list.txt
+
+# Find out how many characters are in list.txt without opening the file or printing it to the command line.
+wc -m /home/workbench/list.txt
+

exercise3
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+# Before I organized the photos by year, what command would have listed all of the photos of type .png?
+find . -name "*.png"
+
+# Before I organized the photos by year, what command would have deleted all of my hiking photos?
+find . -name "*hiking*"
+
+# What series of commands would you use in order to put my figures for a data science course and the pictures I took in the lab into their own folders
+
+# Supposed that we have a file including all pngs and txts, we are going to move them seperately.
+mv *.txt data
+mv *.jpg photo

exercise4
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+# Before I organized the photos by year, what command would have listed all of the photos of type .png?
+find . -name "*.png"
+
+# Before I organized the photos by year, what command would have deleted all of my hiking photos?
+find . -name "*hiking*"
+
+# What series of commands would you use in order to put my figures for a data science course and the pictures I took in the lab into their own folders
+
+# Supposed that we have a file including all pngs and txts, we are going to move them seperately.
+mv *.txt data
+mv *.jpg photo