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Full Discussion: sed - matching pattern one but not pattern two
Top Forums Shell Programming and Scripting sed - matching pattern one but not pattern two Post 302314245 by ghostdog74 on Thursday 7th of May 2009 09:04:44 PM
Old 05-07-2009
if you can use Python
Code:
for line in open("file"):
    line=line.strip()
    if "pam_unix2.so" in line and not "use_first_pass" in line:
        print "use_first_pass "  + line
    else:
        print line

or inplace version
Code:
import fileinput
for line in fileinput.FileInput("file",inplace=1):
    line=line.strip()
    if "pam_unix2.so" in line and not "use_first_pass" in line:
        print "use_first_pass "  + line
    else:
        print line

 

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LEARN ABOUT PHP

line

line(1)                                                            User Commands                                                           line(1)

NAME

       line - read one line

SYNOPSIS

       line

DESCRIPTION

       The  line utility copies one line (up to and including a new-line) from the standard input and writes it on the standard output. It returns
       an exit status of 1 on EOF and always prints at least a new-line. It is often used within shell files to read from the user's terminal.

EXIT STATUS

       Exit status is:

       0        Successful completion

       >0       End-of-file on input.

ATTRIBUTES

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

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

SEE ALSO

       sh(1), read(2), attributes(5)

SunOS 5.10                                                          1 Feb 1995                                                             line(1)
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