Where are the sources of ZIP?

[akane-tky-jpn]

I want to build the ZIP command myself.

[carlocab]

I'm afraid you'll have to be more specific:

❯ brew search zip
==> Formulae
bzip2       fcrackzip   gzip        lbzip2      libzzip     lzip        minizip2    pbzip2      quazip      snzip       unzip
clzip       fuse-zip    laszip      libzip      lrzip       minizip     p7zip       plzip       rzip        szip        zip
==> Casks
betterzip       izip            macwinzipper    maczip          maczip4win      winzip          yemuzip         zipcleaner

[akane-tky-jpn]

where are the source codes in the directory on my pc?
zip gzip ... etc.

[SMillerDev]

That depends on what operating system you're using. But generally you only get the binaries. Normally you wouldn't have the source of commands on your pc.