Cutting efficiency of large data files Nearly 5G in the paper, cut into half. Single data are "the beginning of a total of 3M. The idea is to find 1.5 million the number of rows of data. Directional reuse head out. (Awk '/^>/{sum+=1}{if (sum==1500000) {print NR}}' sj.whole.fa.qual) But the feeling of running out of n-long trip yet. It is estimated that the switch used to head the G copy things out, a very long time bars. . . ? Awk sed yesterday with the title change data for each run half of the results being given to the effect is more data too. . . . Is awk sed on the documents or oversize documents edge beyond itself? Cutting efficiency of large data files Why not use the split 呢?? Cutting efficiency of large data files [ Closed window ]