Updates VSS with changes made to a checked-out file, and unlocks the VSS master copy. You can also use the command name Update (for backward compatibility).
ss Checkin VSS files [-C] [-H] [-I-] [-K] [-N] [-O] [-P[project]] [-R] [-W] [-Y] [-?]
Checks in your changes to the file TEST.C:
ss Checkin TEST.C
Checks in all files that you have checked out from the current project:
ss Checkin * -P
The following table describes the command-line options available with this command.
| Option | Description |
| -C | Use the same comment for all checked-in files. |
| -K | Keep the file checked out after checking it in. |
| -G | Set options for the retrieved local file. |
| -W | Make the retrieved local copy writable. |
| -R | Check in an entire project list recursively. |
| -P | Check in only files checked out from the current or specified project. |
| -O | Paginate or redirect the command output. |
| -I- | Ignore: Do not ask for input under any circumstances. |
| -N | Change between long and short file name mode. |
| -Y | Specify a username and/or password. |
| -?, -H | Request online Help on a command. |
You must have the Check Out access right to use this command.
If you check in many files at once, VSS asks for a comment for each file individually: If you want them all to have the same comment, use the -C option.
It is possible to check in a file and create a new version while leaving the file checked out. To keep a file checked out, use the -K option. You can also make this behavior the default by setting the Keep_Checkedout initialization variable in the SS.INI file. Use the -K- option to indicate that you do not want to keep the file checked out.
Sometimes you check in a file that has not changed and create a new version. VSS displays a message asking if you actually want to perform a Check In; if you say No, VSS performs an Undo Check Out, so that the file is unlocked, but no new version is logged. You can avoid this prompt by setting the Update_No_Change initialization variable in your SS.INI file.
The -P option acts only on items that are checked out from the specified project. If you do not specify a particular project after the -P, the current project is assumed.