6-4-Important-Git-Features.md

6.4 Important Git Features

6.4.4 Exercises

1. Look at the help pages for git log and git diff.

   $ git help log
   
   $ git help diff

2. Add to the .gitignore you already started to include a specific file name, then add that file to your repository.

   $ echo "specific_file_name" >> .gitignore
   
   $ touch specific_file_name

3. Create a file that contains the Git log for this repository. Use grep to see which day of the week most of the commits occurred on.

   $ git log > log_file.txt

   Next, write this script:

   #!usr/bin/env bash
   # File: log_info.sh
   
   week_days=(Sat Sun Mon Tue Wed Thu Fri)
   
   max_num=0
   
   max_day="No Day"
   
   for day in ${week_days[*]}
   do
       num=$(grep $day log_file.txt | wc -l)
       
       if [[ $num -gt $max_num ]]
       then
           let max_num=$num
           
           max_day=$day
       fi
   done
   
   echo "$max_day: $max_num"

   Then, run the script:

   $ bash log_info.sh