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Add -o flag to include job output in notifications

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Fetches the last N lines of journal output (default 10) via
journalctl and includes them in desktop/email notification bodies.
Supports CLI (-o 5) and edit mode (o or o=5 flag syntax).

Also fixes systemd %s specifier expansion in email printf format
strings (must use %%s so systemd passes %s through to the shell).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Matthias Johnson 2026-02-14 16:35:52 -07:00
parent c3c534f7ce
commit 67528374cd
3 changed files with 46 additions and 12 deletions
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README.md
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@ -73,6 +73,9 @@ systab -t "in 1 hour" -c "make build" -i
# With email notification (via sendmail)
systab -t "every day at 6am" -c "df -h" -m user@example.com
# Include last 10 lines of output in notification
systab -t "every day at 6am" -c "df -h" -i -o 10
```
### Managing jobs
@ -121,7 +124,7 @@ g7h8i9:e=user@host | weekly | ~/backup.sh
- Delete a line to remove a job
- Add a line with `new` as the ID to create a job: `new | every 5 minutes | echo hello`
- Comment out a line (`#`) to pause, uncomment to resume
- Append notification flags after the ID with `:` — `i` for desktop, `e=addr` for email, comma-separated for both (e.g., `a1b2c3:i,e=user@host`)
- Append notification flags after the ID with `:` — `i` for desktop, `e=addr` for email, `o` for output (default 10 lines), `o=N` for custom count, comma-separated (e.g., `a1b2c3:i,o,e=user@host`)
### Job IDs
@ -142,6 +145,7 @@ Job Creation:
-f <script> Script file to execute (reads stdin if neither -c nor -f)
-i Send desktop notification on completion (success/failure)
-m <email> Send email notification to address (via sendmail)
-o <lines> Include last N lines of job output in notifications (default: 10)
Management:
-P <id> Pause (disable) a job