cut, paste Examples

cut - remove sections from each line of files


cut OPTION... [FILE]...

-b<list>:  select only these bytes

-c<list>: select only these characters

-d<delim>: use <delim> instead of TAB for field delimiter

-f<list>: select only these fields;  also print any line that contains  no
          delimiter character, unless the -s option is specified

--complement: complement the set of selected bytes, characters or fields

-s:  do not print lines not containing delimiters

--output-delimiter=<string>: use <string> as the output delimiter the 
                             default is to use the in put delimiter

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paste - merge lines of files

paste [OPTION]... [FILE]...

Write  lines  consisting  of  the sequentially corresponding lines from
each FILE, separated by TABs, to standard output.

With no FILE, or when FILE is -, read standard input.

-d<char>: use character <char> instead of TABs

• projection on first and forth column of the file (delimiter: ,)
  cut -d',' -f1,4 ../data/city.csv
  [Output]

• delete column 1 and 4 (delimiter: ,)
  cut -d',' --complement -f1,4 ../data/city.csv
  [Output]

• retun the second and third character
  seq 1000 1030 | cut -b2-3
  [Output]

• retun the first two, and forth character
  seq 1000 1030 | cut -b1-2,4
  [Output]

• return the first two characters from each line
  cut --complement -b3- ../data/city.csv
  [Output]

• merges city.name.txt name and city.population.txt line by line
  paste city.name.txt city.population.txt
  [Output]

• combines two numbers (separated by ,) from input in a line
  seq 10 21 | paste -d',' - -
  [Output]

• combines three numbers (separted by , and :) from input in a line
  seq 10 21 | paste -d',:' - - -
  [Output]