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Output files

Per-run summary — `SUMMARY/YYYY-MM/SUMMARY_timestamp.csv`

One row per device per run:

host,vendor,site,hostname,serial,model,status,error,post_check
10.0.0.1,cisco,Site-A,CORE-SW-01,FCW1234A01B,C9300-48P,success,,show snmp user output...
10.0.0.2,alcatel,Site-B,N1744PS1R1ESW01,,OS6860-P48,error,Auth failed,

Column	Description
`host`	IP address
`hostname`	Discovered live from device
`serial`	Discovered from device
`model`	Discovered from device
`status`	`success` or `error`
`error`	Failure reason (empty on success)
`post_check`	Output of the post-check command

Inventory — `INVENTORY/inventory.csv`

Persistent. Updated on every run. One row per device. Per-task columns added automatically.

host,hostname,vendor,site,model,serial,ios_version,last_seen,SNMPV3_status,SNMPV3_date
10.0.0.1,CORE-SW-01,cisco,Site-A,C9300-48P,FCW1234A01B,17.3.5,2026-05-02 15:00,CONFIGURED,2026-05-02 15:00

Pre/Post check files

Folder	Contents
`PRE_CHECK/{hostname}.cfg`	Running-config or show output captured before changes
`POST_CHECK/{hostname}.cfg`	Verification output captured after changes

Backup files — `BACKUP/YYYY-MM/{hostname}_{timestamp}.cfg`

Full running-configs saved when --backup flag is used. See Backup task.

Failed devices — `config/failed_devices.csv`

Auto-created after any run that has failures. Use with --retry to retry only failed devices.

Consolidated summary

Merge all per-run SUMMARY CSVs into one file (one row per device, latest run wins):

python -m src --consolidate
# Output: SUMMARY/CONSOLIDATED_SUMMARY.csv