Clear it in 3 steps
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Start the environment
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Investigate the target
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Submit the flag
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Bash Scripting - Power of Automation
Mission
/app/numbers.txt contains numbers from 1 to 1000, one per line. Extract all numbers that satisfy these conditions and calculate their sum: Conditions: - Divisible by both 3 and 5 - NOT divisible by 7 Create a bash script to solve this. The sum is the flag.
Hints
Hint 1 Show
Use while read loop to read file line by line
Hint 2 Show
Check divisibility with if [ $((num % 3)) -eq 0 ]
Hint 3 Show
Accumulate in sum variable and echo $sum at the end