Attention: Using non-SCCS commands with SCCS files can damage the SCCS files.
The following SCCS commands are a complete system for handling SCCS files:
| admin | Creates an SCCS file or changes an existing SCCS file. | 
| cdc | Changes the comments associated with a delta. | 
| comb | Combines two or more consecutive deltas in an SCCS file. | 
| delta | Adds a set of changes (deltas) to the text of an SCCS file. | 
| get | Gets a specified version of an SCCS file for editing or compiling. | 
| prs | Formats and prints specified portions of an SCCS file to standard output. | 
| rmdel | Removes the most recent delta on a branch from an SCCS file. | 
| sact | Displays current SCCS file editing status. | 
| sccs | Administration program for the SCCS system. The sccs command contains a set of pseudo-commands that perform most SCCS services. | 
| sccsdiff | Writes the differences between two versions of an SCCS file. | 
| sccshelp | Explains an SCCS error message or command. | 
| unget | Cancels the effect of a previous use of the get -e command. | 
| val | Checks an SCCS file to see if its computed checksum matches the checksum listed in the header. | 
| vc | Substitutes assigned values in place of identification keywords. | 
| what | Searches a system file for a pattern and displays text that follows it. | 
Source Code Control System (SCCS) Overview.
SCCS Flag and Parameter Conventions.