#compdef dd _values -w 'option' \ 'if[specify input file]:input file:_tilde_files' \ 'of[specify output file]:output file:_tilde_files' \ '(bs)ibs[input block size]:block size (bytes)' \ '(bs)obs[output block size]:block size (bytes)' \ '(ibs obs)bs[block size]:block size (bytes)' \ 'cbs[conversion buffer size]:buffer size (bytes)' \ 'skip[input blocks initially skipped]:blocks' \ 'seek[output blocks initially skipped]:blocks' \ 'files[specify number of input files to copy and concatenate]:number of files' \ 'count[number of input blocks to copy]:blocks' \ 'conv[specify conversions to apply]:conversion:_values -s , conversion "(ebcdic ibm)ascii" "(ascii ibm)ebcdic" "(ascii ebcdic)ibm" "(unblock)block" "(block)unblock" "(ucase)lcase" "(lcase)ucase" swab noerror sync'