sed script to print a value from txt file Post: 302136167

Top Forums Shell Programming and Scripting sed script to print a value from txt file Post 302136167 by cfajohnson on Saturday 15th of September 2007 06:49:51 PM

Registered User

Quote:

Originally Posted by cmontr

I would appreciate if someone can help me to write a shell script using sed. From a larget text file I need to print a fixed value of a word. In another words whenever it finds that word, it needs to grab the other line containing "dn" and prints its value. For example:

dn: uid=poi.1111,ou=abc,o=cc.com
authpassword;orclcommonpwd: {SHA}adhnbckhsypzx=
businesscategory: abc
createtimestamp: 20050709198316x
creatorsname: cn=bulkload
modifiersname: cn=bulkload
modifytimestamp: 20050709198316x
objectclass: top
objectclass: cuser
cquestion: xyf88561

--------------------

in this example txt there are thousands of similar ones.

I need to be able to print "cquestion" and related "dn" for it using sed in a shell script. I would appreciate if someone can help me and email at "cmontr@verizon.com"

This looks more like a job for awk, but it's not entirely clear what you want.

Do you want to print any line containing "cquestion:" and the earlier line containing "dn:"?
Code:
awk '
   /^dn:/ { dn = $0 }
   /^cquestion:/ { print dn; print }' FILE

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script

script(1)							   User Commands							 script(1)

NAME

       script - make record of a terminal session

SYNOPSIS

       script [-a] [filename]

DESCRIPTION

       The  script  utility  makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the
       record is saved in the file typescript. See WARNINGS.

       The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends
       when the forked shell exits or when Control-d is typed.

OPTIONS

       The following option is supported:

       -a	Appends the session record to filename, rather than overwriting it.

NOTES

       script places everything that appears on the screen in filename, including prompts.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

WARNINGS

       script  can  pose  a  security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a
       privileged user, that is, root. Be sure that typescript is not a link before running script.

SunOS 5.10							    30 Jan 2004 							 script(1)