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Assign every word from a line to a variable

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3

1

I am very new to shell programming.
I have a file named quaternary_splitted.csv on macOS.
Every line has 4 words. I want to take every word from each line and assign it to a variable. Please suggest some kind of awk command in for loop

The value of each of those 4 variable I want to use further in my shell program.

Thanks for the help.
Few of the lines from the file:

Ta Cr Mo W 
Nb Cr Mo W 
Nb Ta Mo W 
Nb Ta Cr W 
Nb Ta Cr Mo

shell-script awk

share|improve this question

edited 8 hours ago

terdon♦

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asked 8 hours ago

SufyanSufyan

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• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Why awk? I mean, awk does this automatically: awk 'print $3' file will print the 3rd field. Is that what you mean, or do you want to do this in the shell?
  
  – terdon♦
  8 hours ago
  

  
  
  
  

add a comment
 | 

3

1

I am very new to shell programming.
I have a file named quaternary_splitted.csv on macOS.
Every line has 4 words. I want to take every word from each line and assign it to a variable. Please suggest some kind of awk command in for loop

The value of each of those 4 variable I want to use further in my shell program.

Thanks for the help.
Few of the lines from the file:

Ta Cr Mo W 
Nb Cr Mo W 
Nb Ta Mo W 
Nb Ta Cr W 
Nb Ta Cr Mo

shell-script awk

share|improve this question

edited 8 hours ago

terdon♦

143k3535 gold badges294294 silver badges472472 bronze badges

asked 8 hours ago

SufyanSufyan

1622 bronze badges

New contributor

Sufyan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Why awk? I mean, awk does this automatically: awk 'print $3' file will print the 3rd field. Is that what you mean, or do you want to do this in the shell?
  
  – terdon♦
  8 hours ago
  

  
  
  
  

add a comment
 | 

I am very new to shell programming.
I have a file named quaternary_splitted.csv on macOS.
Every line has 4 words. I want to take every word from each line and assign it to a variable. Please suggest some kind of awk command in for loop

The value of each of those 4 variable I want to use further in my shell program.

Thanks for the help.
Few of the lines from the file:

Ta Cr Mo W 
Nb Cr Mo W 
Nb Ta Mo W 
Nb Ta Cr W 
Nb Ta Cr Mo

shell-script awk

share|improve this question

edited 8 hours ago

terdon♦

143k3535 gold badges294294 silver badges472472 bronze badges

asked 8 hours ago

SufyanSufyan

1622 bronze badges

New contributor

Sufyan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

Ta Cr Mo W 
Nb Cr Mo W 
Nb Ta Mo W 
Nb Ta Cr W 
Nb Ta Cr Mo

share|improve this question

edited 8 hours ago

terdon♦

143k3535 gold badges294294 silver badges472472 bronze badges

asked 8 hours ago

SufyanSufyan

1622 bronze badges

New contributor

Sufyan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 8 hours ago

terdon♦

143k3535 gold badges294294 silver badges472472 bronze badges

asked 8 hours ago

SufyanSufyan

1622 bronze badges

New contributor

Sufyan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 8 hours ago

terdon♦

143k3535 gold badges294294 silver badges472472 bronze badges

edited 8 hours ago

terdon♦

143k3535 gold badges294294 silver badges472472 bronze badges

asked 8 hours ago

SufyanSufyan

1622 bronze badges

New contributor

Sufyan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 8 hours ago

SufyanSufyan

1622 bronze badges

1 Answer
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5

You can do this with a while read loop like so:

while read -r col1 col2 col3 col4 trash; do
 something with "$col1"
 something with "$col2"
 something with "$col3"
 something with "$col4"
done < /path/to/quaternary_splitted.csv

This will read through each line of quaternary_splitted.csv and set the first column to col1, second column to col2, etc.

The trash parameter is used to catch anything that may be in your file and unwanted.
Say you had a line: Nb Ta Cr W what is this doing here?. Without trash you would get:

col1=Nb
col2=Ta
col3=Cr
col4='W what is this doing here?`

share|improve this answer

answered 8 hours ago

Jesse_bJesse_b

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5

You can do this with a while read loop like so:

while read -r col1 col2 col3 col4 trash; do
 something with "$col1"
 something with "$col2"
 something with "$col3"
 something with "$col4"
done < /path/to/quaternary_splitted.csv

This will read through each line of quaternary_splitted.csv and set the first column to col1, second column to col2, etc.

The trash parameter is used to catch anything that may be in your file and unwanted.
Say you had a line: Nb Ta Cr W what is this doing here?. Without trash you would get:

col1=Nb
col2=Ta
col3=Cr
col4='W what is this doing here?`

share|improve this answer

answered 8 hours ago

Jesse_bJesse_b

18.9k33 gold badges4646 silver badges8888 bronze badges

add a comment
 | 

5

You can do this with a while read loop like so:

while read -r col1 col2 col3 col4 trash; do
 something with "$col1"
 something with "$col2"
 something with "$col3"
 something with "$col4"
done < /path/to/quaternary_splitted.csv

This will read through each line of quaternary_splitted.csv and set the first column to col1, second column to col2, etc.

The trash parameter is used to catch anything that may be in your file and unwanted.
Say you had a line: Nb Ta Cr W what is this doing here?. Without trash you would get:

col1=Nb
col2=Ta
col3=Cr
col4='W what is this doing here?`

share|improve this answer

answered 8 hours ago

Jesse_bJesse_b

18.9k33 gold badges4646 silver badges8888 bronze badges

add a comment
 | 

You can do this with a while read loop like so:

while read -r col1 col2 col3 col4 trash; do
 something with "$col1"
 something with "$col2"
 something with "$col3"
 something with "$col4"
done < /path/to/quaternary_splitted.csv

This will read through each line of quaternary_splitted.csv and set the first column to col1, second column to col2, etc.

The trash parameter is used to catch anything that may be in your file and unwanted.
Say you had a line: Nb Ta Cr W what is this doing here?. Without trash you would get:

col1=Nb
col2=Ta
col3=Cr
col4='W what is this doing here?`

share|improve this answer

answered 8 hours ago

Jesse_bJesse_b

18.9k33 gold badges4646 silver badges8888 bronze badges

while read -r col1 col2 col3 col4 trash; do
 something with "$col1"
 something with "$col2"
 something with "$col3"
 something with "$col4"
done < /path/to/quaternary_splitted.csv

col1=Nb
col2=Ta
col3=Cr
col4='W what is this doing here?`

share|improve this answer

answered 8 hours ago

Jesse_bJesse_b

18.9k33 gold badges4646 silver badges8888 bronze badges

answered 8 hours ago

Jesse_bJesse_b

18.9k33 gold badges4646 silver badges8888 bronze badges

answered 8 hours ago

Jesse_bJesse_b

18.9k33 gold badges4646 silver badges8888 bronze badges