Linux command
jshon 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
Extract key
echo '{"name":"test"}' | jshon -e name
Get string value
echo '{"name":"test"}' | jshon -e name -u
Get array element
echo '[1,2,3]' | jshon -e 0
List object keys
echo '{"a":1,"b":2}' | jshon -k
Iterate array and unpack
echo '["a","b","c"]' | jshon -a -u
Read from file
jshon -F [data.json] -e name -u
说明
jshon parses, reads, and creates JSON from the shell. It replaces fragile adhoc parsers made from grep/sed/awk and heavyweight one-line parsers made from perl/python. Operations are chained on a stack-based editing history. Each manipulation pushes a result onto the stack, and the final value is printed. The -I flag enables in-place editing of files.
参数
- -F _PATH_
- Read JSON from a file instead of stdin.
- -S
- Return JSON sorted by key.
- -Q
- Quiet mode; disable error reporting on stderr.
- -C
- Continue on recoverable errors (e.g., extracting nonexistent keys adds null).
- -I
- In-place file editing; requires -F. Suppresses normal output.
- -0
- Use null byte as delimiter for -u output instead of newline.
- -e _INDEX_
- Extract value at key or array index.
- -s _VALUE_
- Create a JSON string.
- -n _VALUE_
- Create a JSON nonstring (number, true, false, null, {}, []).
- -u
- Unpack (unquote) string value.
- -t
- Show type of current value (string, number, bool, null, object, array).
- -l
- Show length of current object or array.
- -k
- Return newline-separated list of keys.
- -a
- Iterate over array elements.
- -p
- Pop the last manipulation from the stack.
- -d _INDEX_
- Delete element at key or array index.
- -i _INDEX_
- Insert a sub-element from the stack into the array/object underneath.
- --version
- Print version and exit.
FAQ
What is the jshon command used for?
jshon parses, reads, and creates JSON from the shell. It replaces fragile adhoc parsers made from grep/sed/awk and heavyweight one-line parsers made from perl/python. Operations are chained on a stack-based editing history. Each manipulation pushes a result onto the stack, and the final value is printed. The -I flag enables in-place editing of files.
How do I run a basic jshon example?
Run `echo '{"name":"test"}' | jshon -e name` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -F _PATH_ do in jshon?
Read JSON from a file instead of stdin.