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Thanks!!

its a tab delimited file. I am trying to use gawk to replace the "-"

I have a file in which "-"(by itself and nothing else) occurs in different fields in each record(sometimes in the 3 field, sometime in the 20th field, some time in the 100th field....etc). Also there...

Thanks, that works!

This does not work while using awk. How do I do this in awk?

Thanks

For a field format such as AAL1001_MD82, how do I select(and use in if statement) only the last four elements( in this case MD82) or the first three elements (in this case AAL)?

For instance, how...

Clear! Thanks a lot

Thanks a lot! I really appreciate your help

---------- Post updated at 05:47 PM ---------- Previous update was at 05:23 PM ----------

What values are assigned to array f[$1]? I understand its...

I am beginner, and would like to know the following

* Does the command read the files one by one, or does it read it simultaneously?

* How does it know which command is for which file?

* How...

I realized that you had not used curly brackets. The command runs, but the file generated(opwonoise) does not have anything in it.

Can you please explain the command?

Thanks

$ gawk'{FNR==NR {arr[FNR]=$1; next} $1==arr[FNR]}' opnoise opwflightno > opwono
ise
bash: gawk{FNR==NR {arr[FNR]=$1; next} $1==arr[FNR]}: command not found

This is what I got

I did! its not working

I am getting command not found. All I did was replace nawk with gawk. I do not have nawk.

I am beginner in awk

awk 'BEGIN{for(i=1;(getline<"opnoise")>0;i++) arr[i]=$1}{print arr[20]}'

In the above script, opnoise is a file, I am reading it into an array and then printing the value...

Actually this what I am trying to do. I need to use the values in the array to remove certain records in file opwflightno and make a new file opwonoise. But awk is not executing beyond BEGIN. I had...

I am beginner in awk

awk 'BEGIN{for(i=1;(getline<"opnoise")>0;i++) arr[i]=$1}{print arr[20]}'

In the above script, opnoise is a file, I am reading it into an array and then printing the value...