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| 1 | --- | ||
| 2 | title: "Easy measure time took in a bash script" | ||
| 3 | permalink: /easy-time-took-in-bash.html | ||
| 4 | date: 2023-05-28T17:53:20+02:00 | ||
| 5 | layout: post | ||
| 6 | type: note | ||
| 7 | draft: false | ||
| 8 | tags: [bash] | ||
| 9 | --- | ||
| 10 | |||
| 11 | In Bash, the `$SECONDS` variable is a special variable that automatically keeps | ||
| 12 | track of the number of seconds since the current shell or script started | ||
| 13 | executing. It starts counting from the moment the script begins running. | ||
| 14 | |||
| 15 | ```bash | ||
| 16 | #!/bin/bash | ||
| 17 | |||
| 18 | # Reset the timer to zero. | ||
| 19 | SECONDS=0 | ||
| 20 | |||
| 21 | # Do something. | ||
| 22 | sleep 5 | ||
| 23 | |||
| 24 | # Print the time elapsed. | ||
| 25 | echo "Time taken: $SECONDS seconds" | ||
| 26 | ``` | ||
