print value from first line on each line

up vote
5
down vote

favorite

I have file of following format:

 1.0
 2.0
 3.0
 4.0
 5.0

Is it possible to copy value in first line 1.0 to the beginning of every line in awk? Like this:

 1.0 1.0
 1.0 2.0
 1.0 3.0
 1.0 4.0
 1.0 5.0

edited Dec 25 '17 at 11:21

Jeff Schaller

31.8k848109

asked Dec 25 '17 at 7:43

Bhavin Chirag

1514

With GNU sed: sed -n '1h;G;s/n/ /p; :j;g;N;s/n/ /p;bj' file In this case, awk is more transparent.
â€“Â Cyrus
Dec 25 '17 at 11:31

add a commentÂ |Â

up vote
5
down vote

favorite

I have file of following format:

 1.0
 2.0
 3.0
 4.0
 5.0

Is it possible to copy value in first line 1.0 to the beginning of every line in awk? Like this:

 1.0 1.0
 1.0 2.0
 1.0 3.0
 1.0 4.0
 1.0 5.0

edited Dec 25 '17 at 11:21

Jeff Schaller

31.8k848109

asked Dec 25 '17 at 7:43

Bhavin Chirag

1514

With GNU sed: sed -n '1h;G;s/n/ /p; :j;g;N;s/n/ /p;bj' file In this case, awk is more transparent.
â€“Â Cyrus
Dec 25 '17 at 11:31

add a commentÂ |Â

up vote
5
down vote

favorite

I have file of following format:

 1.0
 2.0
 3.0
 4.0
 5.0

Is it possible to copy value in first line 1.0 to the beginning of every line in awk? Like this:

 1.0 1.0
 1.0 2.0
 1.0 3.0
 1.0 4.0
 1.0 5.0

edited Dec 25 '17 at 11:21

Jeff Schaller

31.8k848109

asked Dec 25 '17 at 7:43

Bhavin Chirag

1514

I have file of following format:

 1.0
 2.0
 3.0
 4.0
 5.0

Is it possible to copy value in first line 1.0 to the beginning of every line in awk? Like this:

 1.0 1.0
 1.0 2.0
 1.0 3.0
 1.0 4.0
 1.0 5.0

edited Dec 25 '17 at 11:21

Jeff Schaller

31.8k848109

asked Dec 25 '17 at 7:43

Bhavin Chirag

1514

edited Dec 25 '17 at 11:21

Jeff Schaller

31.8k848109

edited Dec 25 '17 at 11:21

Jeff Schaller

31.8k848109

edited Dec 25 '17 at 11:21

Jeff Schaller

31.8k848109

asked Dec 25 '17 at 7:43

Bhavin Chirag

1514

asked Dec 25 '17 at 7:43

Bhavin Chirag

1514

asked Dec 25 '17 at 7:43

Bhavin Chirag

1514

With GNU sed: sed -n '1h;G;s/n/ /p; :j;g;N;s/n/ /p;bj' file In this case, awk is more transparent.
â€“Â Cyrus
Dec 25 '17 at 11:31

add a commentÂ |Â

With GNU sed: sed -n '1h;G;s/n/ /p; :j;g;N;s/n/ /p;bj' file In this case, awk is more transparent.
â€“Â Cyrus
Dec 25 '17 at 11:31

With GNU sed: sed -n '1h;G;s/n/ /p; :j;g;N;s/n/ /p;bj' file In this case, awk is more transparent.
â€“Â Cyrus
Dec 25 '17 at 11:31

add a commentÂ |Â

2 Answers
2

active

oldest

votes

up vote
8
down vote

accepted

awk 'NR==1 f=$1 print f,$1' file

Output:


1.0 1.0
1.0 2.0
1.0 3.0
1.0 4.0
1.0 5.0

If current line number (NR) is 1 then save column 1 ($1) to variable f. For every line print content of variable f and content of column 1.

edited Dec 25 '17 at 9:00

answered Dec 25 '17 at 7:55

Cyrus

7,0362835

i though like you ! lol but he want different thing. :D i edited my answer to achieve his target.
â€“Â ÃŽÂ±Ã”Â‹Ã‰Â±Ã’Â½Ã”Âƒ ÃŽÂ±ÃÂ¼Ã‘Â”Ã‘ÂÃŽÂ¹cÃŽÂ±ÃŽÂ·
Dec 25 '17 at 7:56

add a commentÂ |Â

up vote
1
down vote

I have done this by sed command working as expected

k=`sed -n 1p file`;sed "s/^/$k /g" file

output

1.0 1.0
1.0 2.0
1.0 3.0
1.0 4.0
1.0 5.0

answered Dec 25 '17 at 9:28

Praveen Kumar BS

1,010128

add a commentÂ |Â

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

up vote
8
down vote

accepted

awk 'NR==1 f=$1 print f,$1' file

Output:


1.0 1.0
1.0 2.0
1.0 3.0
1.0 4.0
1.0 5.0

If current line number (NR) is 1 then save column 1 ($1) to variable f. For every line print content of variable f and content of column 1.

edited Dec 25 '17 at 9:00

answered Dec 25 '17 at 7:55

Cyrus

7,0362835

i though like you ! lol but he want different thing. :D i edited my answer to achieve his target.
â€“Â ÃŽÂ±Ã”Â‹Ã‰Â±Ã’Â½Ã”Âƒ ÃŽÂ±ÃÂ¼Ã‘Â”Ã‘ÂÃŽÂ¹cÃŽÂ±ÃŽÂ·
Dec 25 '17 at 7:56

add a commentÂ |Â

up vote
8
down vote

accepted

awk 'NR==1 f=$1 print f,$1' file

Output:


1.0 1.0
1.0 2.0
1.0 3.0
1.0 4.0
1.0 5.0

If current line number (NR) is 1 then save column 1 ($1) to variable f. For every line print content of variable f and content of column 1.

edited Dec 25 '17 at 9:00

answered Dec 25 '17 at 7:55

Cyrus

7,0362835

i though like you ! lol but he want different thing. :D i edited my answer to achieve his target.
â€“Â ÃŽÂ±Ã”Â‹Ã‰Â±Ã’Â½Ã”Âƒ ÃŽÂ±ÃÂ¼Ã‘Â”Ã‘ÂÃŽÂ¹cÃŽÂ±ÃŽÂ·
Dec 25 '17 at 7:56

add a commentÂ |Â

up vote
8
down vote

accepted

awk 'NR==1 f=$1 print f,$1' file

Output:


1.0 1.0
1.0 2.0
1.0 3.0
1.0 4.0
1.0 5.0

If current line number (NR) is 1 then save column 1 ($1) to variable f. For every line print content of variable f and content of column 1.

edited Dec 25 '17 at 9:00

answered Dec 25 '17 at 7:55

Cyrus

7,0362835

awk 'NR==1 f=$1 print f,$1' file

Output:


1.0 1.0
1.0 2.0
1.0 3.0
1.0 4.0
1.0 5.0

If current line number (NR) is 1 then save column 1 ($1) to variable f. For every line print content of variable f and content of column 1.

edited Dec 25 '17 at 9:00

answered Dec 25 '17 at 7:55

Cyrus

7,0362835

edited Dec 25 '17 at 9:00

answered Dec 25 '17 at 7:55

Cyrus

7,0362835

answered Dec 25 '17 at 7:55

Cyrus

7,0362835

answered Dec 25 '17 at 7:55

Cyrus

7,0362835

i though like you ! lol but he want different thing. :D i edited my answer to achieve his target.
â€“Â ÃŽÂ±Ã”Â‹Ã‰Â±Ã’Â½Ã”Âƒ ÃŽÂ±ÃÂ¼Ã‘Â”Ã‘ÂÃŽÂ¹cÃŽÂ±ÃŽÂ·
Dec 25 '17 at 7:56

add a commentÂ |Â

i though like you ! lol but he want different thing. :D i edited my answer to achieve his target.
â€“Â ÃŽÂ±Ã”Â‹Ã‰Â±Ã’Â½Ã”Âƒ ÃŽÂ±ÃÂ¼Ã‘Â”Ã‘ÂÃŽÂ¹cÃŽÂ±ÃŽÂ·
Dec 25 '17 at 7:56

i though like you ! lol but he want different thing. :D i edited my answer to achieve his target.
â€“Â ÃŽÂ±Ã”Â‹Ã‰Â±Ã’Â½Ã”Âƒ ÃŽÂ±ÃÂ¼Ã‘Â”Ã‘ÂÃŽÂ¹cÃŽÂ±ÃŽÂ·
Dec 25 '17 at 7:56

add a commentÂ |Â

up vote
1
down vote

I have done this by sed command working as expected

k=`sed -n 1p file`;sed "s/^/$k /g" file

output

1.0 1.0
1.0 2.0
1.0 3.0
1.0 4.0
1.0 5.0

answered Dec 25 '17 at 9:28

Praveen Kumar BS

1,010128

add a commentÂ |Â

up vote
1
down vote

I have done this by sed command working as expected

k=`sed -n 1p file`;sed "s/^/$k /g" file

output

1.0 1.0
1.0 2.0
1.0 3.0
1.0 4.0
1.0 5.0

answered Dec 25 '17 at 9:28

Praveen Kumar BS

1,010128

add a commentÂ |Â

up vote
1
down vote

I have done this by sed command working as expected

k=`sed -n 1p file`;sed "s/^/$k /g" file

output

1.0 1.0
1.0 2.0
1.0 3.0
1.0 4.0
1.0 5.0

answered Dec 25 '17 at 9:28

Praveen Kumar BS

1,010128

I have done this by sed command working as expected

k=`sed -n 1p file`;sed "s/^/$k /g" file

output

1.0 1.0
1.0 2.0
1.0 3.0
1.0 4.0
1.0 5.0

answered Dec 25 '17 at 9:28

Praveen Kumar BS

1,010128

answered Dec 25 '17 at 9:28

Praveen Kumar BS

1,010128

answered Dec 25 '17 at 9:28

Praveen Kumar BS

1,010128

answered Dec 25 '17 at 9:28

Praveen Kumar BS

1,010128

add a commentÂ |Â

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