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Removing blank lines

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# 1  
Old 10-08-2013
Removing blank lines
Hi,
my input file is like this I want to remove the blank line.
Code:
"/home/rit/sandbox/garuda/data/test/woman/T_RITK_F0008_ML_100080039.lab" 
r
a
N

e
l
a
k
sh
a
m
.
"/home/rit/sandbox/garuda/data/test/woman/T_RITK_F0008_ML_100070453.lab" 
a
v
a
s
aa
n
i
k
k
u
n_
n_
u
.

My output should be like this
Code:
"/home/rit/sandbox/garuda/data/test/woman/T_RITK_F0008_ML_100080039.lab" 
r
a
N
e
l
a
k
sh
a
m
.
"/home/rit/sandbox/garuda/data/test/woman/T_RITK_F0008_ML_100070453.lab" 
a
v
a
s
aa
n
i
k
k
u
n_
n_
u
.

Last edited by vbe; 10-08-2013 at 02:16 PM.. Reason: code tags
# 2  
Old 10-08-2013
If by "blank" you actually mean "empty", the simplest approach is to use tr to squeeze multiple consecutive newlines into one.

You can handle blank and/or empty lines with ed (hint: g and d commands), sed, grep, or awk.

You've been a member for nearly a year and this is a very simple problem. What have you tried? Did you even search the forum?

Regards,
Alister
# 3  
Old 10-08-2013
Hello,

Could you please use the following.

Code:
awk '!/^$/'  filename

Output will be as follows.

Code:
"/home/rit/sandbox/garuda/data/test/woman/T_RITK_F0008_ML_100080039.lab"
r
a
N
e
l
a
k
sh
a
m
.
"/home/rit/sandbox/garuda/data/test/woman/T_RITK_F0008_ML_100070453.lab"
a
v
a
s
aa
n
i
k
k
u
n_
n_
u
.



Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
sreejithalokkan
# 4  
Old 10-08-2013
Quote:
Originally Posted by sreejithalokkan
Hi,
my input file is like this I want to remove the blank line.
Code:
"/home/rit/sandbox/garuda/data/test/woman/T_RITK_F0008_ML_100080039.lab" 
r
a
N

e
l
a
k
sh
a
m
.
"/home/rit/sandbox/garuda/data/test/woman/T_RITK_F0008_ML_100070453.lab" 
a
v
a
s
aa
n
i
k
k
u
n_
n_
u
.

My output should be like this
Code:
"/home/rit/sandbox/garuda/data/test/woman/T_RITK_F0008_ML_100080039.lab" 
r
a
N
e
l
a
k
sh
a
m
.
"/home/rit/sandbox/garuda/data/test/woman/T_RITK_F0008_ML_100070453.lab" 
a
v
a
s
aa
n
i
k
k
u
n_
n_
u
.

try

Code:
awk '!/^$/' file

OR
Code:
sed '/^$/d' file

This User Gave Thanks to Akshay Hegde For This Post:
sreejithalokkan
# 5  
Old 10-08-2013
The best way to remove blank lines including lines with just spaces and/or TABs is:
Code:
awk NF file

These 2 Users Gave Thanks to Scrutinizer For This Post:
Akshay Hegde RavinderSingh13
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