head — Print first lines of files

Original author: Bill Joy / UC Berkeley (OpenBSD head.c,v 1.24)
Ported by Duncan Bowring using amiport (AI-assisted porting toolkit).
Project: https://github.com/bdgscotland/amiport

Cross-compiled with m68k-amigaos-gcc for AmigaOS 3.x (68000+).
Tested on FS-UAE (A1200, Kickstart 3.1) -- 21/21 tests passed.

Usage:
  head [file ...]             Print first 10 lines of each file
  head -n 5 file.txt          Print first 5 lines
  head -20 file.txt           Print first 20 lines (legacy syntax)
  head file1.txt file2.txt    Multiple files with ==> headers <==

Features:
  - Default: 10 lines
  - -n count: specify line count
  - Legacy -count syntax supported
  - Multiple files get ==> filename <== headers
  - Reads stdin when no files given
  - AmigaOS wildcard expansion (#? patterns)
  - Proper exit codes: 0=OK, 10=ERROR

Includes full source code (original POSIX and ported Amiga versions)
and PORT.md documenting every transformation applied.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
-rw-r--r--     0/0        2051    4135  49.6% -lh5- 48f8 Mar 22 06:36 PORT.md
-rw-r--r--     0/0        1959    7640  25.6% -lh5- c6fa Mar 22 06:36 TEST-REPORT.md
-rw-r--r--     0/0       20444   37600  54.4% -lh5- 4ca1 Mar 22 06:36 head
-rw-r--r--     0/0         661    1217  54.3% -lh5- 3d08 Mar 22 06:36 head.readme
drwxr-xr-x     0/0           0       0 ****** -lhd- 0000 Mar 22 06:36 original/
-rw-r--r--     0/0        1768    3680  48.0% -lh5- 689a Mar 22 06:36 original/head.c
drwxr-xr-x     0/0           0       0 ****** -lhd- 0000 Mar 22 06:36 ported/
-rw-r--r--     0/0        3303    7191  45.9% -lh5- 0a8f Mar 22 06:36 ported/head.c
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         8 files   30186   61463  49.1%            Mar 22 23:48