+ zstd -h
-Usage: zstd *OPTION*... *FILE*... *-o file*
-Compress or uncompress FILEs (with no FILE or when FILE is `-`, read from standard input).
+Compress or decompress the INPUT file(s); reads from STDIN if INPUT is `-` or not provided.
- -o file result stored into `file` (only 1 output file)
- -1 .. -19 compression level (faster .. better; default: 3)
- -d, --decompress decompression
- -f, --force disable input and output checks. Allows overwriting existing files,
- input from console, output to stdout, operating on links,
- block devices, etc. During decompression and when the output
- destination is stdout, pass-through unrecognized formats as-is.
- --rm remove source file(s) after successful de/compression
- -k, --keep preserve source file(s) (default)
- -D DICT use DICT as Dictionary for compression or decompression
- -h display usage and exit
- -H,--help display long help and exit
+Usage: zstd *OPTIONS...* *INPUT... | -* *-o OUTPUT*
+
+Options:
+ -o OUTPUT Write output to a single file, OUTPUT.
+ -k, --keep Preserve INPUT file(s). *Default*
+ --rm Remove INPUT file(s) after successful (de)compression.
+
+ -# Desired compression level, where `#` is a number between 1 and 19;
+ lower numbers provide faster compression, higher numbers yield
+ better compression ratios. *Default: 3*
+
+ -d, --decompress Perform decompression.
+ -D DICT Use DICT as the dictionary for compression or decompression.
+
+ -f, --force Disable input and output checks. Allows overwriting existing files,
+ receiving input from the console, printing ouput to STDOUT, and
+ operating on links, block devices, etc. Unrecognized formats will be
+ passed-through through as-is.
+
+ -h Display short usage and exit.
+ -H, --help Display full help and exit.
+ -V, --version Display the program version and exit.
+ zstd -H
...
-Advanced options :
+Advanced options:
...
+ zstd --help
...
-Advanced options :
+Advanced options:
...