Usei o comando: nano
Dentro do arquivo, escrevi o seguinte script:
#!/bin/bash
# Definimos o caminho para o arquivo de saída
output_file="/home/jezebel/monitor_memoria/top_processes_$(date +\%Y\%m\%d_\%H\%M).txt"
# Listamos os 15 processos com maior consumo de memória e salvamos no arquivo de saída
ps -e -o pid,%mem --sort=-%mem | head -n 16 > "$output_file"
echo "Arquivo gerado: $output_file"
Salvei o script e para dar permissão de execução, executei o comando:
chmod +x /home/jezebel/monitor_memoria/monitora_memoria.sh
Para programar o script para rodar automaticamente a cada 5 minutos, abri o crontab com:
crontab -e
E adicionei a última linha :*/5 * * * * /home/jezebel/monitor_memoria/monitora_memoria.sh
Que ficou assim:
# Edit this file to introduce tasks to be run by cron.
#
# Each task to run has to be defined through a single line
# indicating with different fields when the task will be run
# and what command to run for the task
#
# To define the time you can provide concrete values for
# minute (m), hour (h), day of month (dom), month (mon),
# and day of week (dow) or use '*' in these fields (for 'any').
#
# Notice that tasks will be started based on the cron's system
# daemon's notion of time and timezones.
#
# Output of the crontab jobs (including errors) is sent through
# email to the user the crontab file belongs to (unless redirected).
#
# For example, you can run a backup of all your user accounts
# at 5 a.m every week with:
# 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/
#
# For more information see the manual pages of crontab(5) and cron(8)
#
# m h dom mon dow command
*/5 * * * * /home/jezebel/monitor_memoria/monitora_memoria.sh
Para confirmar que estava funcionando, executei manualmente:
jezebel@Linux:~$ /home/jezebel/monitor_memoria/monitora_memoria.sh
Arquivo gerado: /home/jezebel/monitor_memoria/top_processes_20251117_0032.txt
Listei o conteúdo da pasta:
jezebel@Linux:~$ ls -l /home/jezebel/monitor_memoria
-rw-rw-r-- 1 jezebel jezebel 208 Nov 17 00:32 top_processes_20251117_0032.txt