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what is the meaning of 1 at the end of awk scriptsed - find string and appendCreating multiple input files by using sed in a for loopsed, find and place after and beforesed - find and replace text containing “/”unix: replace one entire column in one file with a single value from another fileSearch pattern in a file and replace substring in the column inlinefind and sed (find and delete)sed: replace strings with variable contentUsing sed command to find and replace codeSed to find and replace regular expression

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

1

I have a file called app.properties like this

prop1.value=hi

prop2.value=hello

prop3.url=https://google.com

As per my requirement, If I see any .value , i need to call an utility function to get the value replaced. just for the example the utility simply multiples the number of chars passed to it * 2.

So, it should become like this.

prop1.value=4

prop2.value=10

prop3.url=https://google.com

I have done simple find and replacement with sed. Not sure how to call any command to replace the value.

  sed -E 's/.value=(.*)/.value=1/g' app.properties

If sed is not correct choice, can you suggest any other alternative?

sed

share|improve this question

asked 3 hours ago

RamPrakashRamPrakash

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add a comment | 

1

I have a file called app.properties like this

prop1.value=hi

prop2.value=hello

prop3.url=https://google.com

As per my requirement, If I see any .value , i need to call an utility function to get the value replaced. just for the example the utility simply multiples the number of chars passed to it * 2.

So, it should become like this.

prop1.value=4

prop2.value=10

prop3.url=https://google.com

I have done simple find and replacement with sed. Not sure how to call any command to replace the value.

  sed -E 's/.value=(.*)/.value=1/g' app.properties

If sed is not correct choice, can you suggest any other alternative?

sed

share|improve this question

asked 3 hours ago

RamPrakashRamPrakash

822 bronze badges

New contributor

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

add a comment | 

I have a file called app.properties like this

prop1.value=hi

prop2.value=hello

prop3.url=https://google.com

As per my requirement, If I see any .value , i need to call an utility function to get the value replaced. just for the example the utility simply multiples the number of chars passed to it * 2.

So, it should become like this.

prop1.value=4

prop2.value=10

prop3.url=https://google.com

I have done simple find and replacement with sed. Not sure how to call any command to replace the value.

  sed -E 's/.value=(.*)/.value=1/g' app.properties

If sed is not correct choice, can you suggest any other alternative?

sed

share|improve this question

asked 3 hours ago

RamPrakashRamPrakash

822 bronze badges

New contributor

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

prop1.value=hi

prop2.value=hello

prop3.url=https://google.com

prop1.value=4

prop2.value=10

prop3.url=https://google.com

  sed -E 's/.value=(.*)/.value=1/g' app.properties

share|improve this question

asked 3 hours ago

RamPrakashRamPrakash

822 bronze badges

New contributor

RamPrakash 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 3 hours ago

RamPrakashRamPrakash

822 bronze badges

New contributor

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

asked 3 hours ago

RamPrakashRamPrakash

822 bronze badges

New contributor

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

asked 3 hours ago

RamPrakashRamPrakash

822 bronze badges

1 Answer
1

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1

How about

$ awk 'BEGIN{OFS=FS="="} $1 ~ /.value$/ {$2 = 2 * length($2)} 1' app.properties 

prop1.value=4

prop2.value=10

prop3.url=https://google.com

If you want something closer to your sed approach, then perhaps

perl -pe 's/.value=(.*)/sprintf ".value=%s", 2 * length $1/e' app.properties

or

perl -pe 's/(?<=.value=).*/2 * length $&/e' app.properties

share|improve this answer

answered 3 hours ago

steeldriversteeldriver

42.6k55 gold badges5656 silver badges9494 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you are genius! Would you explain what does the 1 {$2 = 2 * length($2)} 1' do here?
  
  – RamPrakash
  1 hour ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @RamPrakash please see what is the meaning of 1 at the end of awk script
  
  – steeldriver
  24 mins ago
  

  
  
  
  

add a comment | 

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1

How about

$ awk 'BEGIN{OFS=FS="="} $1 ~ /.value$/ {$2 = 2 * length($2)} 1' app.properties 

prop1.value=4

prop2.value=10

prop3.url=https://google.com

If you want something closer to your sed approach, then perhaps

perl -pe 's/.value=(.*)/sprintf ".value=%s", 2 * length $1/e' app.properties

or

perl -pe 's/(?<=.value=).*/2 * length $&/e' app.properties

share|improve this answer

answered 3 hours ago

steeldriversteeldriver

42.6k55 gold badges5656 silver badges9494 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you are genius! Would you explain what does the 1 {$2 = 2 * length($2)} 1' do here?
  
  – RamPrakash
  1 hour ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @RamPrakash please see what is the meaning of 1 at the end of awk script
  
  – steeldriver
  24 mins ago
  

  
  
  
  

add a comment | 

1

How about

$ awk 'BEGIN{OFS=FS="="} $1 ~ /.value$/ {$2 = 2 * length($2)} 1' app.properties 

prop1.value=4

prop2.value=10

prop3.url=https://google.com

If you want something closer to your sed approach, then perhaps

perl -pe 's/.value=(.*)/sprintf ".value=%s", 2 * length $1/e' app.properties

or

perl -pe 's/(?<=.value=).*/2 * length $&/e' app.properties

share|improve this answer

answered 3 hours ago

steeldriversteeldriver

42.6k55 gold badges5656 silver badges9494 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you are genius! Would you explain what does the 1 {$2 = 2 * length($2)} 1' do here?
  
  – RamPrakash
  1 hour ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @RamPrakash please see what is the meaning of 1 at the end of awk script
  
  – steeldriver
  24 mins ago
  

  
  
  
  

add a comment | 

How about

$ awk 'BEGIN{OFS=FS="="} $1 ~ /.value$/ {$2 = 2 * length($2)} 1' app.properties 

prop1.value=4

prop2.value=10

prop3.url=https://google.com

If you want something closer to your sed approach, then perhaps

perl -pe 's/.value=(.*)/sprintf ".value=%s", 2 * length $1/e' app.properties

or

perl -pe 's/(?<=.value=).*/2 * length $&/e' app.properties

share|improve this answer

answered 3 hours ago

steeldriversteeldriver

42.6k55 gold badges5656 silver badges9494 bronze badges

$ awk 'BEGIN{OFS=FS="="} $1 ~ /.value$/ {$2 = 2 * length($2)} 1' app.properties 

prop1.value=4

prop2.value=10

prop3.url=https://google.com

perl -pe 's/.value=(.*)/sprintf ".value=%s", 2 * length $1/e' app.properties

perl -pe 's/(?<=.value=).*/2 * length $&/e' app.properties

share|improve this answer

answered 3 hours ago

steeldriversteeldriver

42.6k55 gold badges5656 silver badges9494 bronze badges

answered 3 hours ago

steeldriversteeldriver

42.6k55 gold badges5656 silver badges9494 bronze badges

answered 3 hours ago

steeldriversteeldriver

42.6k55 gold badges5656 silver badges9494 bronze badges