| Abbreviation | Definition |
|---|---|
| ld | Link editor or loader |
| lex | lexical analyser |
| lex | LEXical Analyzer |
| lharc | Lempl-Huffman archiver |
| LIR | Linux Install Run |
| ln | link |
| logname | log-in name |
| lorder | library order |
| lpc | line printer control |
| lpr | line print |
| lpr | Line PRinter |
| lprm | line printer remove |
| ls | list |
| LSOF | LiSt Open Files |
| m4 | macro processor version 4 |
| MAC | Mtime, Atime, Ctime |
| man | manual |
| mg | Multiline Grep |
| MKDIR | Make Directory |
| mkfs | make file system |