Print 1st column of 1st row and 2nd column of last row, where last column has same value
Input:
0.016 0.032 1
0.032 0.048 1
0.048 0.064 1
0.064 0.08 1
0.08 0.096 1
0.096 0.112 1
0.112 0.128 0
0.128 0.144 0
0.144 0.16 0
0.16 0.176 0
0.176 0.192 0
0.192 0.208 0
Desired output:
0.016 0.112 1
0.112 0.208 0
bash shell-script text-processing
New contributor
add a comment |
Input:
0.016 0.032 1
0.032 0.048 1
0.048 0.064 1
0.064 0.08 1
0.08 0.096 1
0.096 0.112 1
0.112 0.128 0
0.128 0.144 0
0.144 0.16 0
0.16 0.176 0
0.176 0.192 0
0.192 0.208 0
Desired output:
0.016 0.112 1
0.112 0.208 0
bash shell-script text-processing
New contributor
3
What have you tried? How did it fail? It's unclear how you would like to rearrange the file, please try to describe it in other words.
– choroba
1 hour ago
It tried using awk and keeping the first column and the last. I think looking at input and the desired output makes it quite clear
– aaa
1 hour ago
add a comment |
Input:
0.016 0.032 1
0.032 0.048 1
0.048 0.064 1
0.064 0.08 1
0.08 0.096 1
0.096 0.112 1
0.112 0.128 0
0.128 0.144 0
0.144 0.16 0
0.16 0.176 0
0.176 0.192 0
0.192 0.208 0
Desired output:
0.016 0.112 1
0.112 0.208 0
bash shell-script text-processing
New contributor
Input:
0.016 0.032 1
0.032 0.048 1
0.048 0.064 1
0.064 0.08 1
0.08 0.096 1
0.096 0.112 1
0.112 0.128 0
0.128 0.144 0
0.144 0.16 0
0.16 0.176 0
0.176 0.192 0
0.192 0.208 0
Desired output:
0.016 0.112 1
0.112 0.208 0
bash shell-script text-processing
bash shell-script text-processing
New contributor
New contributor
edited 28 mins ago
PRY
2,55831026
2,55831026
New contributor
asked 2 hours ago
aaaaaa
1
1
New contributor
New contributor
3
What have you tried? How did it fail? It's unclear how you would like to rearrange the file, please try to describe it in other words.
– choroba
1 hour ago
It tried using awk and keeping the first column and the last. I think looking at input and the desired output makes it quite clear
– aaa
1 hour ago
add a comment |
3
What have you tried? How did it fail? It's unclear how you would like to rearrange the file, please try to describe it in other words.
– choroba
1 hour ago
It tried using awk and keeping the first column and the last. I think looking at input and the desired output makes it quite clear
– aaa
1 hour ago
3
3
What have you tried? How did it fail? It's unclear how you would like to rearrange the file, please try to describe it in other words.
– choroba
1 hour ago
What have you tried? How did it fail? It's unclear how you would like to rearrange the file, please try to describe it in other words.
– choroba
1 hour ago
It tried using awk and keeping the first column and the last. I think looking at input and the desired output makes it quite clear
– aaa
1 hour ago
It tried using awk and keeping the first column and the last. I think looking at input and the desired output makes it quite clear
– aaa
1 hour ago
add a comment |
2 Answers
2
active
oldest
votes
Perl to the rescue!
perl -ane '
sub out { print "@_n" }
if ($F[2] != $three) {
out($one, $two, $three) if defined $one;
($one, $three) = @F[0, 2];
}
$two = $F[1];
END { out($one, $two, $three) }
' < input > output
-n
reads the input line by line and runs the code for each line;
-a
splits each line into the @F array on whitespace;- the
if defined $one
skips outputing the first line (it's third column is different to the previous one, but there's nothing to output yet); - the END block is needed to print the final block
add a comment |
I did it using awk
:
awk 'BEGIN{f=0;OFS=" ";t=0;} {if(f == 0 && $3 == 1) {ff=$1;f=1;next} if(f==1 && $3 == 1) {r=$2;}
if(t == 0 && $3 == 0) {print ff,r,1;ff=$1;t=1;next} if(t==1 && $3 == 0) {r=$2;}} END{print ff,r,0}' file
It seems large but approach is simple, check if last column is 1 or 0, and then print 1st column of 1st line and 2nd column of last line.
Shorter Version:
awk 'BEGIN{f=0;OFS=" ";t=0;} {if($3 == 1) {if(f==0){ff=$1;f=1;next} else{r=$2;}}
else{if(t==0){print ff,r,1;ff=$1;t=1;next} else{r=$2;}}} END{print ff,r,0}' file
Initially f and t has value 0, then for the first time $3==0
then ff will be equal to first column and f=1
, and for further lines we will take r=$2
. Similarly for $3==0
.
add a comment |
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2 Answers
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active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Perl to the rescue!
perl -ane '
sub out { print "@_n" }
if ($F[2] != $three) {
out($one, $two, $three) if defined $one;
($one, $three) = @F[0, 2];
}
$two = $F[1];
END { out($one, $two, $three) }
' < input > output
-n
reads the input line by line and runs the code for each line;
-a
splits each line into the @F array on whitespace;- the
if defined $one
skips outputing the first line (it's third column is different to the previous one, but there's nothing to output yet); - the END block is needed to print the final block
add a comment |
Perl to the rescue!
perl -ane '
sub out { print "@_n" }
if ($F[2] != $three) {
out($one, $two, $three) if defined $one;
($one, $three) = @F[0, 2];
}
$two = $F[1];
END { out($one, $two, $three) }
' < input > output
-n
reads the input line by line and runs the code for each line;
-a
splits each line into the @F array on whitespace;- the
if defined $one
skips outputing the first line (it's third column is different to the previous one, but there's nothing to output yet); - the END block is needed to print the final block
add a comment |
Perl to the rescue!
perl -ane '
sub out { print "@_n" }
if ($F[2] != $three) {
out($one, $two, $three) if defined $one;
($one, $three) = @F[0, 2];
}
$two = $F[1];
END { out($one, $two, $three) }
' < input > output
-n
reads the input line by line and runs the code for each line;
-a
splits each line into the @F array on whitespace;- the
if defined $one
skips outputing the first line (it's third column is different to the previous one, but there's nothing to output yet); - the END block is needed to print the final block
Perl to the rescue!
perl -ane '
sub out { print "@_n" }
if ($F[2] != $three) {
out($one, $two, $three) if defined $one;
($one, $three) = @F[0, 2];
}
$two = $F[1];
END { out($one, $two, $three) }
' < input > output
-n
reads the input line by line and runs the code for each line;
-a
splits each line into the @F array on whitespace;- the
if defined $one
skips outputing the first line (it's third column is different to the previous one, but there's nothing to output yet); - the END block is needed to print the final block
edited 41 mins ago
answered 56 mins ago
chorobachoroba
26.7k44975
26.7k44975
add a comment |
add a comment |
I did it using awk
:
awk 'BEGIN{f=0;OFS=" ";t=0;} {if(f == 0 && $3 == 1) {ff=$1;f=1;next} if(f==1 && $3 == 1) {r=$2;}
if(t == 0 && $3 == 0) {print ff,r,1;ff=$1;t=1;next} if(t==1 && $3 == 0) {r=$2;}} END{print ff,r,0}' file
It seems large but approach is simple, check if last column is 1 or 0, and then print 1st column of 1st line and 2nd column of last line.
Shorter Version:
awk 'BEGIN{f=0;OFS=" ";t=0;} {if($3 == 1) {if(f==0){ff=$1;f=1;next} else{r=$2;}}
else{if(t==0){print ff,r,1;ff=$1;t=1;next} else{r=$2;}}} END{print ff,r,0}' file
Initially f and t has value 0, then for the first time $3==0
then ff will be equal to first column and f=1
, and for further lines we will take r=$2
. Similarly for $3==0
.
add a comment |
I did it using awk
:
awk 'BEGIN{f=0;OFS=" ";t=0;} {if(f == 0 && $3 == 1) {ff=$1;f=1;next} if(f==1 && $3 == 1) {r=$2;}
if(t == 0 && $3 == 0) {print ff,r,1;ff=$1;t=1;next} if(t==1 && $3 == 0) {r=$2;}} END{print ff,r,0}' file
It seems large but approach is simple, check if last column is 1 or 0, and then print 1st column of 1st line and 2nd column of last line.
Shorter Version:
awk 'BEGIN{f=0;OFS=" ";t=0;} {if($3 == 1) {if(f==0){ff=$1;f=1;next} else{r=$2;}}
else{if(t==0){print ff,r,1;ff=$1;t=1;next} else{r=$2;}}} END{print ff,r,0}' file
Initially f and t has value 0, then for the first time $3==0
then ff will be equal to first column and f=1
, and for further lines we will take r=$2
. Similarly for $3==0
.
add a comment |
I did it using awk
:
awk 'BEGIN{f=0;OFS=" ";t=0;} {if(f == 0 && $3 == 1) {ff=$1;f=1;next} if(f==1 && $3 == 1) {r=$2;}
if(t == 0 && $3 == 0) {print ff,r,1;ff=$1;t=1;next} if(t==1 && $3 == 0) {r=$2;}} END{print ff,r,0}' file
It seems large but approach is simple, check if last column is 1 or 0, and then print 1st column of 1st line and 2nd column of last line.
Shorter Version:
awk 'BEGIN{f=0;OFS=" ";t=0;} {if($3 == 1) {if(f==0){ff=$1;f=1;next} else{r=$2;}}
else{if(t==0){print ff,r,1;ff=$1;t=1;next} else{r=$2;}}} END{print ff,r,0}' file
Initially f and t has value 0, then for the first time $3==0
then ff will be equal to first column and f=1
, and for further lines we will take r=$2
. Similarly for $3==0
.
I did it using awk
:
awk 'BEGIN{f=0;OFS=" ";t=0;} {if(f == 0 && $3 == 1) {ff=$1;f=1;next} if(f==1 && $3 == 1) {r=$2;}
if(t == 0 && $3 == 0) {print ff,r,1;ff=$1;t=1;next} if(t==1 && $3 == 0) {r=$2;}} END{print ff,r,0}' file
It seems large but approach is simple, check if last column is 1 or 0, and then print 1st column of 1st line and 2nd column of last line.
Shorter Version:
awk 'BEGIN{f=0;OFS=" ";t=0;} {if($3 == 1) {if(f==0){ff=$1;f=1;next} else{r=$2;}}
else{if(t==0){print ff,r,1;ff=$1;t=1;next} else{r=$2;}}} END{print ff,r,0}' file
Initially f and t has value 0, then for the first time $3==0
then ff will be equal to first column and f=1
, and for further lines we will take r=$2
. Similarly for $3==0
.
edited 26 mins ago
answered 38 mins ago
PRYPRY
2,55831026
2,55831026
add a comment |
add a comment |
aaa is a new contributor. Be nice, and check out our Code of Conduct.
aaa is a new contributor. Be nice, and check out our Code of Conduct.
aaa is a new contributor. Be nice, and check out our Code of Conduct.
aaa is a new contributor. Be nice, and check out our Code of Conduct.
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3
What have you tried? How did it fail? It's unclear how you would like to rearrange the file, please try to describe it in other words.
– choroba
1 hour ago
It tried using awk and keeping the first column and the last. I think looking at input and the desired output makes it quite clear
– aaa
1 hour ago