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11. Given a file, replace all occurrence of word “DEF” with “ABC” from 5th line till end in only those lines that contains word “MNO”

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.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ margin-bottom:0;
}

-1

I was able to substitute all occurrences of "DEF" string with "ABC" string starting from line 5 in my file called "DEFABC.txt". However, when I try to add another condition with an if statement (only substitute if the line contains "MNO" string) the script still substitutes all occurrences after line 5. What am I doing wrong? Thank you!

shell-script sed

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KristinaKristina

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-1

I was able to substitute all occurrences of "DEF" string with "ABC" string starting from line 5 in my file called "DEFABC.txt". However, when I try to add another condition with an if statement (only substitute if the line contains "MNO" string) the script still substitutes all occurrences after line 5. What am I doing wrong? Thank you!

shell-script sed

share|improve this question

asked 20 mins ago

KristinaKristina

1

New contributor

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

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Please don't post screenshots of text. Copy the text here and use code formatting instead
  
  – muru
  12 mins ago
  

  
  
  
  

add a comment
 | 

I was able to substitute all occurrences of "DEF" string with "ABC" string starting from line 5 in my file called "DEFABC.txt". However, when I try to add another condition with an if statement (only substitute if the line contains "MNO" string) the script still substitutes all occurrences after line 5. What am I doing wrong? Thank you!

shell-script sed

share|improve this question

asked 20 mins ago

KristinaKristina

1

New contributor

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Check out our Code of Conduct.

share|improve this question

asked 20 mins ago

KristinaKristina

1

New contributor

Kristina 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

asked 20 mins ago

KristinaKristina

1

New contributor

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

asked 20 mins ago

KristinaKristina

1

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sed can do this on its own:

sed -e '5,${/MNO/{s/DEF/ABC/g;};}'

This:

1. Selects only lines from 5 to the end to act on, with the code in the outer braces.


2. Then further selects only those lines from that set containing MNO, to act on with the code in the inner braces.


3. Finally replaces DEF with ABC on those lines.

All other lines are printed unchanged.

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answered 10 mins ago

Michael HomerMichael Homer

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0

sed can do this on its own:

sed -e '5,${/MNO/{s/DEF/ABC/g;};}'

This:

1. Selects only lines from 5 to the end to act on, with the code in the outer braces.


2. Then further selects only those lines from that set containing MNO, to act on with the code in the inner braces.


3. Finally replaces DEF with ABC on those lines.

All other lines are printed unchanged.

share|improve this answer

answered 10 mins ago

Michael HomerMichael Homer

55.3k99 gold badges155155 silver badges189189 bronze badges

add a comment
 | 

0

sed can do this on its own:

sed -e '5,${/MNO/{s/DEF/ABC/g;};}'

This:

1. Selects only lines from 5 to the end to act on, with the code in the outer braces.


2. Then further selects only those lines from that set containing MNO, to act on with the code in the inner braces.


3. Finally replaces DEF with ABC on those lines.

All other lines are printed unchanged.

share|improve this answer

answered 10 mins ago

Michael HomerMichael Homer

55.3k99 gold badges155155 silver badges189189 bronze badges

add a comment
 | 

sed can do this on its own:

sed -e '5,${/MNO/{s/DEF/ABC/g;};}'

This:

1. Selects only lines from 5 to the end to act on, with the code in the outer braces.


2. Then further selects only those lines from that set containing MNO, to act on with the code in the inner braces.


3. Finally replaces DEF with ABC on those lines.

All other lines are printed unchanged.

share|improve this answer

answered 10 mins ago

Michael HomerMichael Homer

55.3k99 gold badges155155 silver badges189189 bronze badges

sed -e '5,${/MNO/{s/DEF/ABC/g;};}'

share|improve this answer

answered 10 mins ago

Michael HomerMichael Homer

55.3k99 gold badges155155 silver badges189189 bronze badges

answered 10 mins ago

Michael HomerMichael Homer

55.3k99 gold badges155155 silver badges189189 bronze badges

answered 10 mins ago

Michael HomerMichael Homer

55.3k99 gold badges155155 silver badges189189 bronze badges