采用SQL语句操作CSV或TSV文件：q

jopen 10年前

q让你直接在CSVs/TSVs(逗号分割文件/制表分割文件)或其他表格式的文本文件上运行像SQL一样的查询，查询操作包括joins 或其他SQL操作，支持自动字段类型和名字的检测。

亮点

Seamless multi-table SQL support, including joins. filenames are just used instead of table names (use - for stdin)
Automatic column name and column type detection (Allows working more naturally with the data)
Multiple parsing modes - relaxed and strict. Relaxed mode allows to easily parse semi-structured data, such as log files.
Standard installation - RPM, Homebrew (Mac). Debian package coming soon.
Support for quoted fields
Full UTF-8 support (and other encodings)
Handling of gzipped files
Output delimiter matching and selection
Output beautifier
man page when installed through the RPM package