Notes on bash and git

# include<stdio.h>
int main() {
  printf("Hello, I'm Jae. Welcome to my github page!");
  }

Bash

$ echo -e "-e allows\nescaping characters"

-e allows
escaping characters

$ cat -n test.txt
ㄴ -n enumerates each line

$ bash .../target.sh
ㄴ runs inexecutable script

Gits

• git log -n3 code.py shows the last 3 commits within code.py
• git show [commit-identifier] shows the details of the commit
• git revert [commit-identifier] undoes the changes made in the commit

in case of the immediate amending, use git commit --amend

• git revert HEAD undoes the most recent commit
• git checkout [commit-id] [file-name] also handles erroneous commits
• git blame code.py

Sometimes you have to find someone to be blamed(but not seriously) for bugs or errors.