10-29-2010
Insert Text on lines having the string word
I need help on how I can accomplish my task. I hope someone can help me since I've researching and trying to accomplish this for hours now. Basically, I need to comment-out (or insert a # sign in the beginning of the line) a line when the line has the specific word I am searching. Example I have this line:
Quote:
PM1SYSGFATRAGATEGFAGESDAFSOCAAGAAAGAG
ATAGATESETSOACGATATEGGPQMALDFJANMAGAG
LHAGNAGMLONAGLONLAGLQEEDAFGSTGXCGAGTA
OLAGULNUAGHALUDLNQPSOACNAGONLAONGAAGA
On line 2 & 4, the word SOAC (this is what I am searching for) appears, now I need the whole line be commented out just like below:
Quote:
PM1SYSGFATRAGATEGFAGESDAFSOCAAGAAAGAG
#ATAGATESETSOACGATATEGGPQMALDFJANMAGAG
LHAGNAGMLONAGLONLAGLQEEDAFGSTGXCGAGTA
#OLAGULNUAGHALUDLNQPSOACNAGONLAONGAAGA
then, I also need another code to reverse the effect, that is if the line has the word SOAC, it will remove the # sign at the beginning of the line. Thanks in advance for those who can help me!
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LEARN ABOUT CENTOS
git-stripspace
GIT-STRIPSPACE(1) Git Manual GIT-STRIPSPACE(1)
NAME
git-stripspace - Remove unnecessary whitespace
SYNOPSIS
git stripspace [-s | --strip-comments] < input
DESCRIPTION
Clean the input in the manner used by Git for text such as commit messages, notes, tags and branch descriptions.
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 1.8.3.1 06/10/2014 GIT-STRIPSPACE(1)