README.md

On CentOS 7, the last command doesn't support the --since option to filter users who have logged in within the past two weeks. However, you can use some other commands and scripts to achieve this. Here's a Bash script that can help you find users who have logged in within the past two weeks.

Save this script to a file, for example, show_recent_logins.sh, and make it executable with the following command:

chmod +x show_recent_logins.sh

Then, you can run the script to display users who have logged in within the past two weeks.

The script calculates the date two weeks ago, extracts login data using the last command, and filters the results to display users who logged in after that date.

show_recent_logins.sh

#!/bin/bash

# Calculate the date two weeks ago in the format 'YYYY-MM-DD'
two_weeks_ago=$(date -d "2 weeks ago" "+%Y-%m-%d")

# Get the list of user logins using the 'last' command
login_data=$(last)

# Extract usernames and login timestamps
user_logins=$(echo "$login_data" | awk '{print $1,$5}')

# Loop through the logins and filter users who logged in within the past two weeks
while read -r line; do
    username=$(echo "$line" | awk '{print $1}')
    login_time=$(echo "$line" | awk '{print $2}')

    # Check if the login time is after two weeks ago
    if [[ "$login_time" > "$two_weeks_ago" ]]; then
        echo "User $username last logged in on $login_time"
    fi
done <<< "$user_logins"