Linux command
choose 命令
文本
涉及管道、覆盖或删除，执行前请先确认路径和参数。
常用示例
Select first field
echo "one two three" | choose 0
Select third field
echo "a b c d e" | choose 2
Select range of fields
echo "a b c d e" | choose 1:3
Select from end (last field)
echo "a b c d e" | choose -1
Select last three fields
echo "a b c d e" | choose -3:
Custom field separator
echo "a,b,c" | choose -f ',' 1
Regex field separator
echo "a1b2c" | choose -f '[0-9]' 0:
Select exclusive range
echo "a b c d e" | choose 1:4 --exclusive
说明
choose is a human-friendly, fast alternative to cut and awk for selecting fields from text input. It uses Python-like slice syntax with zero-based indexing, negative indices for counting from the end, and inclusive ranges by default. Unlike cut, which requires exact delimiter specification and uses 1-based indexing, choose handles whitespace splitting automatically and supports regex-based field separators. Written in Rust, it is significantly faster than awk for simple field selection tasks.
参数
- -f, --field-separator _sep_
- Field separator (regex supported)
- -o, --output-field-separator _sep_
- Output separator (default: space)
- -x, --exclusive
- Exclude end index from range
- -c, --character-wise
- Select characters instead of fields
- -n, --non-greedy
- Use non-greedy field splitting
FAQ
What is the choose command used for?
choose is a human-friendly, fast alternative to cut and awk for selecting fields from text input. It uses Python-like slice syntax with zero-based indexing, negative indices for counting from the end, and inclusive ranges by default. Unlike cut, which requires exact delimiter specification and uses 1-based indexing, choose handles whitespace splitting automatically and supports regex-based field separators. Written in Rust, it is significantly faster than awk for simple field selection tasks.
How do I run a basic choose example?
Run `echo "one two three" | choose 0` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -f, --field-separator _sep_ do in choose?
Field separator (regex supported)