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UNIX Help for reading line

 
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# 1  
Old 06-08-2015
UNIX Help for reading line
Hi there,

I am trying to read the content such that if there is 'adsmsext.dll', it will read everything from line one until it reads line 6 with 'C:' then it will terminate at line 5.

Code:
1. C:\WINDOWS\system32\adsmsext.dll NT AUTHORITY\Authenticated Users:R 
2.                                 BUILTIN\Server Operators:C 
3.                                BUILTIN\Administrators:F 
4.                                NT AUTHORITY\SYSTEM:F 
5.
6. C:\WINDOWS\system32\adsnds.dll NT AUTHORITY\Authenticated Users:R 
                               BUILTIN\Server Operators:C 
                               BUILTIN\Administrators:F 
                               NT AUTHORITY\SYSTEM:F

I have tried using grep and sed on my own so far. Do let me know if there are any other alternatives
Last edited by rbatte1; 06-08-2015 at 10:14 AM.. Reason: Added CODE tags to preserve multiple spaces
# 2  
Old 06-08-2015
Are the line numbers part of the file?

---------- Post updated at 10:58 ---------- Previous update was at 10:49 ----------

Anyhow, try
Code:
awk '/C:/ {P=0} /adsmsext.dll/ {P=1} P' file

# 3  
Old 06-08-2015
no line numbers are not part of the code, do you mean breaking them item parts and explain what it means?
# 4  
Old 06-08-2015
Code:
awk '
/C:/            {P=0}           # if $0 (= input line) matches "C:", reset logical var P 
/adsmsext.dll/  {P=1}           # if it matches this, set P to TRUE
P                               # if P is TRUE, do default action (= print $0)
' file

# 5  
Old 06-08-2015
Hi,

How do I substitute at any point in time with any variable.

Code:
/adsmsext.dll/  {P=1}           # if it matches this, set P to TRUE

I want to replace adsmsext.dll with a variable
Last edited by Don Cragun; 06-08-2015 at 10:30 PM.. Reason: Add CODE and ICODE tags.
# 6  
Old 06-08-2015
Examples are always good. Assuming that the pattern you want to match doesn't contain any characters that are special in an extended regular expression, that you are looking for a pattern match anywhere on any input line, and that you still want to turn off copying and start looking for another pattern match when you find a line that contains the string C:; you could try something like:
Code:
awk -v pattern='adsmext.dll' '/C:/ {P=0} $0 ~ pattern {P=1} P' file

or:
Code:
pat='adsmext.dll'
awk pattern="$pat" '/C:/ {P=0} $0 ~ pattern {P=1} P' file

If the constraints stated above don't match the conditions that matter to you, please explicitly state your requirements instead of making us play a guessing game with you.
 
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