05-03-2012
remove duplicate lines with condition
hi to all
Does anyone know if there's a way to remove duplicate lines which we consider the same only if they have the first and the second column the same?
For example I have :
us2333 bbb 5
us2333 bbb 3
us2333 bbb 2
and I want to get
us2333 bbb 10
The thing is I cannot remove the 3rd line and then use uniq -c
as the 3rd line holds an information which is needed.Besides,it is the sum
of the 3rd column (the 3rd column is a result of a previous uniq -c)
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LEARN ABOUT XFREE86
git-stripspace
GIT-STRIPSPACE(1) Git Manual GIT-STRIPSPACE(1)
NAME
git-stripspace - Remove unnecessary whitespace
SYNOPSIS
git stripspace [-s | --strip-comments]
git stripspace [-c | --comment-lines]
DESCRIPTION
Read text, such as commit messages, notes, tags and branch descriptions, from the standard input and clean it in the manner used by Git.
With no arguments, this will:
o remove trailing whitespace from all lines
o collapse multiple consecutive empty lines into one empty line
o remove empty lines from the beginning and end of the input
o add a missing
to the last line if necessary.
In the case where the input consists entirely of whitespace characters, no output will be produced.
NOTE: This is intended for cleaning metadata, prefer the --whitespace=fix mode of git-apply(1) for correcting whitespace of patches or
files in the repository.
OPTIONS
-s, --strip-comments
Skip and remove all lines starting with comment character (default #).
-c, --comment-lines
Prepend comment character and blank to each line. Lines will automatically be terminated with a newline. On empty lines, only the
comment character will be prepended.
EXAMPLES
Given the following noisy input with $ indicating the end of a line:
|A brief introduction $
| $
|$
|A new paragraph$
|# with a commented-out line $
|explaining lots of stuff.$
|$
|# An old paragraph, also commented-out. $
| $
|The end.$
| $
Use git stripspace with no arguments to obtain:
|A brief introduction$
|$
|A new paragraph$
|# with a commented-out line$
|explaining lots of stuff.$
|$
|# An old paragraph, also commented-out.$
|$
|The end.$
Use git stripspace --strip-comments to obtain:
|A brief introduction$
|$
|A new paragraph$
|explaining lots of stuff.$
|$
|The end.$
GIT
Part of the git(1) suite
Git 2.17.1 10/05/2018 GIT-STRIPSPACE(1)