Hi All...

I just discovered busybox, for Windows..

H:\>busybox
BusyBox v1.37.0-FRP-5398-g89ae34445 (2024-06-25 08:38:11 BST)
(mingw32-gcc 14.1.1-3.fc40; mingw32-crt 11.0.1-3.fc40; glob)

It's just one approx 600kb program that contains a selection of unix-like commands. 

The commands/functions available are:

Currently defined functions:
        [, [[, ar, arch, ascii, ash, awk, base32, base64, basename, bash, bc, bunzip2, busybox,
        bzcat, bzip2, cal, cat, cdrop, chattr, chmod, cksum, clear, cmp, comm, cp, cpio, crc32,
        cut, date, dc, dd, df, diff, dirname, dos2unix, dpkg, dpkg-deb, drop, du, echo, ed, egrep,
        env, expand, expr, factor, false, fgrep, find, fold, free, fsync, ftpget, ftpput, getopt,
        grep, groups, gunzip, gzip, hd, head, hexdump, httpd, iconv, id, inotifyd, install, ipcalc,
        jn, kill, killall, lash, less, link, ln, logname, ls, lsattr, lzcat, lzma, lzop, lzopcat,
        make, man, md5sum, mkdir, mktemp, mv, nc, nl, nproc, od, paste, patch, pdpmake, pdrop,
        pgrep, pidof, pipe_progress, pkill, printenv, printf, ps, pwd, readlink, realpath, reset,
        rev, rm, rmdir, rpm, rpm2cpio, sed, seq, sh, sha1sum, sha256sum, sha3sum, sha512sum, shred,
        shuf, sleep, sort, split, ssl_client, stat, strings, su, sum, sync, tac, tail, tar, tee,
        test, time, timeout, touch, tr, true, truncate, ts, tsort, ttysize, uname, uncompress,
        unexpand, uniq, unix2dos, unlink, unlzma, unlzop, unxz, unzip, uptime, usleep, uudecode,
        uuencode, vi, watch, wc, wget, which, whoami, whois, xargs, xxd, xz, xzcat, yes, zcat

QUESTION..  What are the [ and [[ functions as per the first line above?

-- 
 /|ug 
 https://t.me/aabolins

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