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Add number prepend certain lines


 
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# 1  
Add number prepend certain lines

from
Code:
a(depends: )
bb(depends:lmbench )
cc(depends: )
    CONFIG_DEFAULT1=y
    CONFIG_IOSCHED1=y
    CONFIG_CGROUP1=y
ddd(depends: )
    CONFIG_GENERIC_CPU1=y
    CONFIG_CRYPTO_AES_NI1=m

to

Code:
1. a(depends: )
2. bb(depends:lmbench )
3. cc(depends: )
    CONFIG_DEFAULT1=y
    CONFIG_IOSCHED1=y
    CONFIG_CGROUP1=y

4. ddd(depends: )
    CONFIG_GENERIC_CPU1=y
    CONFIG_CRYPTO_AES_NI1=m


Last edited by yanglei_fage; 08-08-2016 at 05:27 AM..
# 2  
With over three hundred posts to your credit, we would hope that you would have a good idea by now on how to do something like this. What have you tried to solve this problem?

What operating system are you using?

What shell are you using?
These 3 Users Gave Thanks to Don Cragun For This Post:
# 3  
I'm using bash or sh shell on ubuntu
# 4  
Quote:
Originally Posted by Don Cragun
.
.
.
What have you tried to solve this problem?
.
.
.
This User Gave Thanks to RudiC For This Post:
# 5  
Quote:
Originally Posted by yanglei_fage
I'm using bash or sh shell on ubuntu
Meat Loaf may say Two Out of Three Ain't Bad, but it's not sufficient here. I repeat: What have you tried to solve this problem?

And, what in your description of this problem explains why the input line:
Code:
    CONFIG_GENERIC_CPU1=y

is supposed to be transformed to:
Code:
    CONFIG_GENERIC_CPU_AUTO1=y

in the output???
# 6  
Quote:
Originally Posted by Don Cragun
Meat Loaf may say Two Out of Three Ain't Bad, but it's not sufficient here. I repeat: What have you tried to solve this problem?

And, what in your description of this problem explains why the input line:
Code:
    CONFIG_GENERIC_CPU1=y

is supposed to be transformed to:
Code:
    CONFIG_GENERIC_CPU_AUTO1=y

in the output???
sorry, my typo, I just updated it

---------- Post updated at 01:54 AM ---------- Previous update was at 01:28 AM ----------

I tried awk '{print NR, "\t", $0}', but it adds each line with number , it's not my case




Moderator's Comments:
Mod Comment Please use CODE tags as required by forum rules!

Last edited by RudiC; 08-08-2016 at 07:38 AM.. Reason: Added CODE tags.
# 7  
Your specification used a period and a space after the sequence number (which is not an input line number so the awk NR variable won't work), not a tab. Try:
Code:
awk '!/^ /{printf("%d. %s\n",++n,$0);next}1' file

But after "correcting" the output you said you wanted before, you have now added an empty line in the middle of the output that the above code will not produce. (And I see no obvious reason why it should be there???)

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