Unix Commands

Find Oracle Archive Logs Older Than N Days with find -mtime Purpose Oracle databases in archivelog mode write a stream of .ARC (archived redo log) files to a destination directory. The directory fills up. When it fills up, the database hangs. The four find -mtime commands below let a DBA list, delete, compress, or move …

Delete the 500 Oldest Files in a Directory (Oracle DBA) Purpose Oracle's diagnostic destination (DIAGNOSTIC_DEST), audit file destination (AUDIT_FILE_DEST, also known as adump), and per-process trace directories collect thousands of small files over time. Inode counts, not bytes, are usually the limit that bites first …

List Files Opened by an Oracle Process with lsof -p Purpose lsof (LiSt Open Files) is the UNIX tool for inspecting which processes have which files open. For an Oracle DBA it is the fastest answer to four common questions: which datafiles is this server process touching, which trace file is PMON writing into right now, …