Help regarding behavior sed regexp query Post: 302372670

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

regexp with sed again!!!

please help: I want to add 1 space between string and numbers: input file: abcd12345 output file: abcd 1234 The following sed command does not work: sed 's/$+$$+$/\1 \2/' file Any ideas, please Andy

2. Shell Programming and Scripting

sed behavior on hp-ux

the sed command: sed 's/^*//' file does not work on HP-UX :-( but it works fine on Linux, content of file: <tab><tab>hello output should be: hello Any ideas?? Thank you Andy

3. Shell Programming and Scripting

Regexp and sed problem

Basically it should identify what ever is in between /*< >*/ (tags) and replace dbname ending with (.) with the words in between the tags i.e. DELETE FROM /*<workDB>*/epd_test./*<multi>*//*<version>*/epd_tbl1 ALL; into DELETE FROM...

4. Shell Programming and Scripting

sed regexp

Hi, I am not that good with reg exp and sed. But I was just looking at something the other day and came across a situation. When I ran the below command: echo "123 word" | sed 's/*/(&)/' the op was: (123) word But when I ran: echo "123 word" | sed 's/*/(&)/g' the o/p was: (123)...

5. UNIX for Dummies Questions & Answers

sed before and after regexp

Dear all i have the code which print 1 line of context before and after regexp, with line number sed -n -e '/regexp/{=;x;1!p;g;$!N;p;D;}' -e h the code work well but any one can tell me what each letter mean {=;x;1!p;g;$!N;p;D;} also how i can print 2 line before and onle line after ...

6. Shell Programming and Scripting

sed with multiple regexp

Dealing with Linux servers script would be in korn or bash shell syntax file is /etc/fstab I want to insert something if regex is matched to all matched lines in the /etc/fstab file and print out entire /etc/fstab file with the changes example 58.228.111.111:/my/file/system...

7. Shell Programming and Scripting

Need help with sed and regexp

Hi everyone, I would really appreciate any help I could get on the following topic. I am not very familiar with reg expressions nor with sed, I just know the basic uses. What I am trying to do is the following: I have a huge text file where I would like to replace all occurnces of a certain...

8. Shell Programming and Scripting

How to use regexp to find an ipaddress from a query string?

I need help with a regexp to find out the ip address which can possibly be present in a URL. The URLs can be in any of the following form <domain>?a=12345&d=somestring1 <domain>?c=10.10.10.100&d=somestring1 <domain>?a=12345&b=somestring1&c=10.1.2.4d=somestring2...

9. Shell Programming and Scripting

sed regexp teaser

G'day, Here's a teaser for a sed guru, which I surely am not one, as even my basic sed skills are rusted from years of not practising ... lol Ok ... we have a string of digits such as: 632413741610252847552619172459483022433027602515212950543016701812771409213148672112 we want it split...

10. UNIX for Beginners Questions & Answers

sed with regexp in Linux

LEARN ABOUT SUNOS

comm

comm(1) 							   User Commands							   comm(1)

NAME

       comm - select or reject lines common to two files

SYNOPSIS

       comm [-123] file1 file2

DESCRIPTION

       The comm utility reads file1 and file2, which must be ordered in the current collating sequence, and produces three text columns as output:
       lines only in file1; lines only in file2; and lines in both files.

       If the input files were ordered according to the collating sequence of the current locale, the lines  written  will  be	in  the  collating
       sequence of the original lines. If not, the results are unspecified.

OPTIONS

       The following options are supported:

       -1	Suppresses the output column of lines unique to file1.

       -2	Suppresses the output column of lines unique to file2.

       -3	Suppresses the output column of lines duplicated in file1 and file2.

OPERANDS

       The following operands are supported:

       file1	A path name of the first file to be compared. If file1 is -, the standard input is used.

       file2	A path name of the second file to be compared. If file2 is -, the standard input is used.

USAGE

       See largefile(5) for the description of the behavior of comm when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes).

EXAMPLES

       Example 1: Printing a list of utilities specified by files

       If file1, file2, and file3 each contain a sorted list of utilities, the command

       example% comm -23 file1 file2  | comm -23 - file3

       prints a list of utilities in file1 not specified by either of the other files. The entry:

       example% comm -12 file1 file2 | comm -12 - file3

       prints a list of utilities specified by all three files. And the entry:

       example% comm -12  file2 file3 | comm -23 -file1

       prints a list of utilities specified by both file2 and file3, but not specified in file1.

ENVIRONMENT VARIABLES

       See  environ(5)	for  descriptions  of  the  following  environment  variables that affect the execution of comm: LANG, LC_ALL, LC_COLLATE,
       LC_CTYPE, LC_MESSAGES, and NLSPATH.

EXIT STATUS

       The following exit values are returned:

       0	All input files were successfully output as specified.

       >0	An error occurred.

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWesu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |enabled			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cmp(1), diff(1), sort(1), uniq(1), attributes(5), environ(5), largefile(5), standards(5)

SunOS 5.10							    3 Mar 2004								   comm(1)