homopolymer/tabtk

Introduction

Tabtk is a fast and lightweight tool for processing TAB-delimited formats.

Basic Unix cut (duplicated columns ignored):
```
  tabtk cut -f 5,1-3,6,6- file.txt
```
Reorder columns:
```
  tabtk cut -rf 5,1-3,6 file.txt
```
Duplicate columns (duplicated columns not ignored with option -r):
```
  tabtk cut -rf 1,1,1 file.txt
```
Use both SPACE and TAB as the delimitor:
```
  tabtk cut -d space -f 1-3 file.txt
```
Cut a CSV file:
```
  tabtk cut -d csv -f 2-4 file.csv
```
Commas can appear in double-quotation marks.
Print lines in streamed.txt that matching loaded.txt on the first column:
```
  tabtk isct loaded.txt streamed.txt
```

Print lines matching the first two columns:

  tabtk isct -1 1,2 loaded.txt streamed.txt

Grep a pattern in specified columns:
```
  tabtk grep -f 2 "^rs[0-9]+" file.vcf
```
Compute the mean, min and max of a numeric column:
```
  tabtk num -c 2 file.txt
```
Compute the standard deviation and quartile:
```
  tabtk num -Qc2 file.txt
```