On the AS400 every file is in a library. The data in the file is actually stored in the individual member. Typically a file has only one member and it has the same name as the file.
Clear Physical File Member - CLRPFM: Removes all the data from the specified member of a physical file.
Display Physical File Member - DSPFM: command used to display the data in the member of the file.
Change Current Library - CHGCURLIB: Lets you specify a different library to occupy the spot of current library in your library list
Edit Library - EDTLIBL
Read and Process - SQL Statements RUNSQLSTM Reads and Process the SQL Statements stored in source member
RGZPFM Reorganizing a physical file
Work with Object - WRKOBJ
To list all the files in library MyLib that start with A
WRKOBJ MYLIB/A* *FILE
To look through all libraries for the file named A
WRKOBJ *ALL/A* *FILE
Work with all members in the file and library: Type WRKMBRPDM on the command link without specifying any parameters and press Enter.
Work with specific list of members: Specify parameters after WRKMBRPDM