Converting CSV to TSV
I have a number of large CSV files and would like them in TSV (tab separated format). The complication is that there are commas in the fields of the CSV file, eg:
perl
How to print incremental count of occurrences of unique values in column 1
I’m trying to come up with an solution to this problem, I need to incrementally count and then print the counts of the unique values in column 1 of a tab delimited text file. Here is an example:
Is there any alternative to grep’s -A -B -C switches (to print few lines before and after )?
grep -A 2 -B 3 prints 2 lines after the grep string and prints 3 lines before. grep -C 3 prints 3 Lines before and 3 lines after Unfortunately, the grep I’m using does not support these options. Are there any alternative commands or script available to simulate this? Using sed/awk/perl/shell scripts? Answers: Thank you … Read more
Using empty line as context “group-separator” for grep
I need grep output with context, in color, and blank lines as group separator. In this question, I learned how to define custom group-separator, and I have constructed my grep command like this: