How to use '@' option in zip command ??

You can specify files to be zipped from standard input by using '@' option as following.

    
$ touch {a,b,c,d}
$ ls
a b c d
$ ls -ltrh
total 0
-rw-r--r--  1 user1  staff     0B  2  1 16:44 d
-rw-r--r--  1 user1  staff     0B  2  1 16:44 c
-rw-r--r--  1 user1  staff     0B  2  1 16:44 b
-rw-r--r--  1 user1  staff     0B  2  1 16:44 a
$ vi filelist
$ 
$ cat ./filelist 
a
b
c
d
$ cat ./filelist | zip -@ ./test.zip
  adding: a (stored 0%)
  adding: b (stored 0%)
  adding: c (stored 0%)
  adding: d (stored 0%)
$ ls
a        b        c        d        filelist test.zip
$ mkdir result
$ unzip ./test.zip -d $_
Archive:  ./test.zip
 extracting: ./result/a              
 extracting: ./result/b              
 extracting: ./result/c              
 extracting: ./result/d              
$ ls ./result/
a b c d
$ 
    

In case that there are several files in a directory, and partially you wanna zip, you can specify which file you wanna zip thorough file-list or standard input.