Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Cannot extract libraries using sed
Top Forums UNIX for Beginners Questions & Answers Cannot extract libraries using sed Post 303037865 by sand1234 on Thursday 15th of August 2019 09:42:03 AM
Old 08-15-2019
Hi MadeinGermany,

Thanks for the responses, nice idea(s). The line without => is not captured via your regex, however DonCragun has provided some details around this.

Code:
 /lib64/ld-linux-x86-64.so.2 (0x00007fc21e165000)

Hi DonCragun,

Thanks for the response.

The initial solution with awk/tr/sort works. Looks like it is successful as the lines which do not have => as delimiter are left untouched by tr anyway.

Code:
./copy_chroot_lib.sh ls echo | tr '=>' '\n' | awk '/\/lib/{print $1}' | sort -u
/lib64/ld-linux-x86-64.so.2   <------------ line without => is included
/lib/x86_64-linux-gnu/libc.so.6
/lib/x86_64-linux-gnu/libdl.so.2
/lib/x86_64-linux-gnu/libpcre.so.3
/lib/x86_64-linux-gnu/libpthread.so.0
/lib/x86_64-linux-gnu/libselinux.so.1

The awk solution is nice and works, as I only need to remove duplicates. Sed is also good, but a little complex to understand.

Can you please explain the following awk code?

Code:
 ./copy_chroot_lib.sh ls echo | awk '$(NF-1) ~ "^/lib" {o[$(NF- 1)]} END {for(f in o) print f}'

From what I understand, if the second last field starts with /lib, the field is put into an array named o. Then the array is traversed and the value of all array elements printed out. How does this remove duplicates?

Thanks.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Please help! Sed extract a pattern

I am trying to extract "securitySettings" out of line: <a ref ="http://localhost:5654/securitySettings"> using sed as follows: name = `grep "localhost" file.html | sed -n 's/.**\/\(.*)/\">/\1/p'` But it didn't run, seems have some syntax error. Do anybody knows why? Thank you very... (11 Replies)
Discussion started by: zhen
11 Replies

2. Shell Programming and Scripting

SED to extract characters

Hi, Please let me know how do we write a piece of code to extract characters from a line using SED. (2 Replies)
Discussion started by: Shilpi
2 Replies

3. Shell Programming and Scripting

SED to extract characters

Hi, Please let me know how do we write a piece of code to extract characters from a line using SED. (1 Reply)
Discussion started by: Shilpi
1 Replies

4. Shell Programming and Scripting

SED extract XML value

I have the following string: <min-pool-size>2</min-pool-size> When I pipe the string into the following code I am expcting for it to return just the value "2", but its just reurning the whole string. Why?? sed -n '/<min-pool-size>/,/<\/min-pool-size>/p' Outputting:... (13 Replies)
Discussion started by: ArterialTool
13 Replies

5. Shell Programming and Scripting

Extract word using sed

Hello, I am new to sed and am trying to extract a word using sed. for example i have a line "const TotalAmount& getTotalAmount() const; " in the file test.txt I am trying to extract getTotalAmount() from the line. For this i tried cat test.txt | sed -n 's/.*get*\(\)//p But... (8 Replies)
Discussion started by: prasbala
8 Replies

6. Shell Programming and Scripting

sed extract from xml

I have an xml file that generally looks like this: "<row><dnorpattern>02788920</dnorpattern><description/></row><row><dnorpattern>\+ 44146322XXXX</dnorpattern><description/></row><row><dnorpattern>40XXX</dnorpattern><description/></row><row><dnorpattern>11</dn... (4 Replies)
Discussion started by: garboon
4 Replies

7. Shell Programming and Scripting

Extract using sed

Given a file with contents /arch/powerpc/boot/4xx.o > /arch/powerpc/boot/.4xx.o.cmd > /arch/powerpc/boot/addnote 5766a5769 > /arch/powerpc/boot/.addnote.cmd 5768a5772,5773 > /arch/powerpc/boot/bamboo.o > /arch/powerpc/boot/.bamboo.o.cmd 5769a5775,5778 > /arch/powerpc/boot/cpm-serial.o... (8 Replies)
Discussion started by: xerox
8 Replies

8. Shell Programming and Scripting

sed data extract

Hello, I have huge number files in a directory. All files have the data. I want extract data. I want all output write to single csv file. following codes works. Thank you very much for help. sed -n '/.*Content$txtE_Zip" type="text" value="\(*\)" maxlength.*/s//\1/p' *>file1 sed -n... (5 Replies)
Discussion started by: hoo
5 Replies

9. Shell Programming and Scripting

sed to extract all strings

Hi, I have a text file containing 2 lines as follows: I'm trying to extract all the strings following an "AME." The output would be as follows: BUSINESS_UNIT PROJECT_ID ACTIVITY_ID RES_USER1 RESOURCE_ID_FROM ANALYSIS_TYPE BI_DISTRIB_STATUS BUSINESS_UNIT PROJECT_ID ACTIVITY_ID... (5 Replies)
Discussion started by: simpletech369
5 Replies

10. Shell Programming and Scripting

Extract a value using sed (easy)

I have this command to replace the version value from PROGRAM (for example here PROGRAM == player) by NEWVERSION sed "/^ *$PROGRAM:/{N; s/*$/ $NEWVERSION/;}" -i $PRDFILE player: version: V6R2013xD3HF5v1 player_old: version: V6R2013xD3HF5v1 partchecker: version:... (2 Replies)
Discussion started by: jcanale
2 Replies

LEARN ABOUT DEBIAN

pmdirs

PMDIRS(1p)						User Contributed Perl Documentation						PMDIRS(1p)

NAME

       pmdirs - print out module directories

DESCRIPTION

       This just prints out the current @INC path, one directory per line.  This is for people who don't want to parse through "perl -V" output or
       hack up their own calls to "perl -e".

EXAMPLES

	   $ pmdirs
	   /home/tchrist/perllib/i686-linux
	   /home/tchrist/perllib
	   /usr/local/devperl/lib/5.00554/i686-linux
	   /usr/local/devperl/lib/5.00554
	   /usr/local/devperl/lib/site_perl/5.00554/i686-linux
	   /usr/local/devperl/lib/site_perl/5.00554
	   .

       This also works for alternate version of Perl:

	   $ filsperl -S pmdirs
	   /home/tchrist/perllib
	   /usr/local/filsperl/lib/5.00554/i686-linux-thread
	   /usr/local/filsperl/lib/5.00554
	   /usr/local/filsperl/lib/site_perl/5.00554/i686-linux-thread
	   /usr/local/filsperl/lib/site_perl/5.00554
	   .

SEE ALSO

       perlrun(1), perlvar(1), lib(3)

AUTHORS and COPYRIGHTS
       Copyright (C) 1999 Tom Christiansen.

       Copyright (C) 2006-2008 Mark Leighton Fisher.

       This is free software; you can redistribute it and/or modify it under the terms of either: (a) the GNU General Public License as published
       by the Free Software Foundation; either version 1, or (at your option) any later version, or (b) the Perl "Artistic License".  (This is the
       Perl 5 licensing scheme.)

       Please note this is a change from the original pmtools-1.00 (still available on CPAN), as pmtools-1.00 were licensed only under the Perl
       "Artistic License".

perl v5.10.1							    2010-02-22								PMDIRS(1p)
All times are GMT -4. The time now is 04:01 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy