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Top Forums UNIX for Beginners Questions & Answers Cannot extract libraries using sed Post 303037750 by sand1234 on Monday 12th of August 2019 11:32:40 PM
Old 08-13-2019
Cannot extract libraries using sed

Hi,

I am attempting to extract the /lib/ paths using sed but it does not appear to work.

Code:
./copy_chroot_lib.sh ls echo | sed s#*\(/lib\).*#\1#g
        linux-vdso.so.1 (0x00007fff77df1000)
        libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007f28190ac000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f2818ec2000)
        libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f2818e4e000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f2818e48000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f2819303000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f2818e27000)
        linux-vdso.so.1 (0x00007ffca8342000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f485dc28000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f485de28000)

 ./copy_chroot_lib.sh ls echo | sed -n s#\(/lib\).*#\1#pg

Desired output

Code:
/lib/x86_64-linux-gnu/libselinux.so.1
...
/lib64/ld-linux-x86-64.so.2

Can you please tell me what I am doing wrong?

Thanks.
 

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NWBPSET(1)							      nwbpset								NWBPSET(1)

NAME
nwbpset - Create a bindery property or set its value SYNOPSIS
nwbpset [ -h ] [ -S server ] [ -U user name ] [ -P password | -n ] [ -C ] DESCRIPTION
nwbpset Reads a property specification from the standard input and creates and sets the corresponding property. The format is determined by the output of 'nwbpvalues -c'. nwbpset will hopefully become an important part of the bindery management suite of ncpfs, together with As another example, look at the following command line: nwbpvalues -t 1 -o supervisor -p user_defaults -c | sed '2s/.*/ME/'| sed '3s/.*/LOGIN_CONTROL/'| nwbpset With this command, the property user_defaults of the user object 'supervisor' is copied into the property login_control of the user object 'me'. nwbpvalues -t 1 -o me -p login_control -c | sed '9s/.*/ff/'| nwbpset This command disables the user object me. Feel free to contribute other examples! nwbpset looks up the file $HOME/.nwclient to find a file server, a user name and possibly a password. See nwclient(5) for more information. Please note that the access permissions of $HOME/.nwclient MUST be 600 for security reasons. OPTIONS
-h -h is used to print out a short help text. -S server server is the name of the server you want to use. -U user user is the user name to use for login. -P password password is the password to use for login. If neither -n nor -P are given, and the user has no open connection to the server, nwbpset prompts for a password. -n -n should be given if no password is required for the login. -C By default, passwords are converted to uppercase before they are sent to the server, because most servers require this. You can turn off this conversion by -C. AUTHORS
nwbpset was written by Volker Lendecke. See the Changes file of ncpfs for other contributors. nwbpset 8/7/1996 NWBPSET(1)
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