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Full Discussion: Inserting lines between specific other lines in a file
Top Forums UNIX for Advanced & Expert Users Inserting lines between specific other lines in a file Post 303045378 by anaigini45 on Thursday 19th of March 2020 12:31:48 AM
Old 03-19-2020
Quote:
Originally Posted by MadeInGermany
You had the wrong quotes.
Code:
sed -i "/$arg/r add.txt" ssl.conf

and the shell will substitute the $arg.

--- Post updated at 11:14 ---

But if you have multiple Listen and want to insert test after the first one only, then it is better to get a line number:
Code:
# Get the line numbers for "Listen" and select the 1st one
lineno=$(sed -n '/Listen/=' ssl.conf | sed -n '1p')
# After that line number insert the text
sed -i "${lineno}r add.txt" ssl.conf


This solution worked for me. However, I forgot about adding a new line (empty line) after the "Listen" string.
So the solution above works, but it includes the lines from add.txt immediately (the following line) after the Listen string.


I tried this :


Code:
sed -i "${lineno} a \n" ssl.conf

It creates the empty line, but also has \n in that new line.
How do I create only the empty line, without the \n?
 

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LEARN ABOUT SUSE

update-ca-certificates

UPDATE-CA-CERTIFICATES(8)				      System Manager's Manual					 UPDATE-CA-CERTIFICATES(8)

NAME

       update-ca-certificates - update system CA certificates

SYNOPSIS

       update-ca-certificates [options]

DESCRIPTION

       update-ca-certificates  updates	the directory /etc/ssl/certs to hold SSL certificates and generates /etc/ssl/ca-bundle.pem, a concatenated
       single-file list of certificates.

       It reads the file /etc/ca-certificates.conf. Each line gives a pathname of a CA certificate under /usr/share/ca-certificates that should be
       trusted.  Lines that begin with "#" are comment lines and thus ignored.	Lines that begin with "!" are deselected, causing the deactivation
       of the CA certificate in question. All certificates are implicitly trusted if no trusted certificates are listed.

       Furthermore all certificates found below /usr/local/share/ca-certificates are also included as implicitly trusted.

       After populating /etc/ssl/certs update-ca-certificates invokes custom hooks in /usr/lib/ca-certificates/update.d/*.run and /etc/ca-certifi-
       cates/update.d/*.run. The command line options used for invoking update-ca-certificates are passed to the hooks as well.

OPTIONS

       A summary of options is included below.

       -h, --help
	      Show summary of options.

       -v, --verbose
	      Be verbose. Output c_rehash.

       -f, --fresh
	      Fresh updates.  Removes symlinks in /etc/ssl/certs directory and re-creates them from scratch.

FILES

       /etc/ca-certificates.conf
	      A configuration file.

       /etc/ssl/ca-bundle.pem
	      A  single-file version of all CA certificates. Use of this file is deprecated and should only be used as last resort by applications
	      that cannot parse the /etc/ssl/certs directory.

       /usr/share/ca-certificates
	      Directory of CA certificates.  /usr/local/share/ca-certificates Directory of local CA certificates.

SEE ALSO

       c_rehash(1),

AUTHOR

       This manual page was written by Fumitoshi UKAI <ukai@debian.or.jp>, for the Debian project  and	modified  by  Ludwig  Nussel  <ludwig.nus-
       sel@suse.de>.

								   27 April 2010					 UPDATE-CA-CERTIFICATES(8)
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