Berkeley-Sysadmin_DeCal - Lab1b

作者学习的版本为spring 2021，但近年的作业内容基本一致

Shell spelunking

1. ls -a

2. ls | xargs cat

3. rm *

4. grep -B 2 'http' big_data.txt

5. chmod +x a_script

6. Use vim, nano, emacs etc

General Questions

1. ls -ltrh
2. head -n 4 big_data.txt
3. overwrite and write