#command cdx cgrep -v -p one,exact,^aaa^bbb
#stdin
 CDX	one
XaaaX
XbbbX
XaaaXbbbX
XbbbXaaaX
XcccX
^aaa^bbb
#stdout
 CDX	one
XaaaX
XbbbX
XaaaXbbbX
XbbbXaaaX
XcccX