#command cdx cgrep -p 2,,foo $TMP/one $TMP/two -V $TMP/nomatch
#infile one
aaa bbb ccc
111 2foo2 333
qqq www eee
#infile two
zzz zfooz zzz
aaa bbb ccc
qqq www eee
yyy foo yyy
#stdout
111 2foo2 333
zzz zfooz zzz
yyy foo yyy
#outfile nomatch
aaa bbb ccc
qqq www eee
aaa bbb ccc
qqq www eee