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help:general_linux:linux_advanced [2016/05/18 14:15]
jebailie [awk]
help:general_linux:linux_advanced [2016/05/18 14:23]
jebailie
Line 32: Line 32:
 * good for printing columnar data, note that the field separator (between the columns) can be anything (space, tab, colon, etc) and can be specified with -F * good for printing columnar data, note that the field separator (between the columns) can be anything (space, tab, colon, etc) and can be specified with -F
 <​code>​ <​code>​
-user@tim:​~$ ​cat test.file |awk '​{print $2}'+user@tim:~$ awk '​{print $2}' ​test.file
 cat cat
 dog dog
Line 70: Line 70:
 3 fish water food 3 fish water food
 4 cow pasture grass 4 cow pasture grass
 +</​code>​
 +
 +==== diff ====
 +"​Compare files"
 +
 +<​code>​
 +user@tim:~$ diff --help
 +Usage: diff [OPTION]... FILES
 +Compare FILES line by line.
 +  // snip //
 +  ​
 +user@tim:~$ diff test.file new.file ​
 +1c1
 +< 1 cat barn food
 +---
 +> 1 lion barn food
 </​code>​ </​code>​