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