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Full Discussion: Help in sed required.
Top Forums Shell Programming and Scripting Help in sed required. Post 302222068 by nua7 on Wednesday 6th of August 2008 01:54:22 AM
Old 08-06-2008
Help in sed required.

Hi All,
I am facing a small problem in sed. I want to insert a line in the existing file.

Existing code:
Code:
access to attr=userPassword
 by self write
 by * auth
 
access to *
 by self write
 by users read
 by anonymous auth

Desired code:
Code:
access to attr=userPassword
 by self write
 by * auth
 
access to *
        by self write
        by users read
        by peername.ip=127.0.0.1 read
        by anonymous auth



I put the existing code in var1 and desired code in var2 and used the following sed command, but somehow it's not working for me. Can there be a easier way to do this.

Code:
sed -i -e 's/$var1/$var2/g;' slapd_config

 

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SHTOOL-INSTALL.TMP(1)					      GNU Portable Shell Tool					     SHTOOL-INSTALL.TMP(1)

NAME
shtool-install - GNU shtool install(1) command SYNOPSIS
shtool install [-v|--verbose] [-t|--trace] [-d|--mkdir] [-c|--copy] [-C|--compare-copy] [-s|--strip] [-m|--mode mode] [-o|--owner owner] [-g|--group group] [-e|--exec sed-cmd] file [file ...] path DESCRIPTION
This command installs a one or more files to a given target path providing all important options of the BSD install(1) command. The trick is that the functionality is provided in a portable way. OPTIONS
The following command line options are available. -v, --verbose Display some processing information. -t, --trace Enable the output of the essential shell commands which are executed. -d, --mkdir To maximize BSD compatiblity, the BSD "shtool "install -d"" usage is internally mapped to the "shtool "mkdir -f -p -m 755"" command. -c, --copy Copy the file to the target path. Default is to move. -C, --compare-copy Same as -c except if the destination file already exists and is identical to the source file, no installation is done and the target remains untouched. -s, --strip This option strips program executables during the installation, see strip(1). Default is to install verbatim. -m, --mode mode The file mode applied to the target, see chmod(1). Setting mode to ""-"" skips this step and leaves the operating system default which is usually based on umask(1). Some file modes require superuser privileges to be set. Default is 0755. -o, --owner owner The file owner name or id applied to the target, see chown(1). This option requires superuser privileges to execute. Default is to skip this step and leave the operating system default which is usually based on the executing uid or the parent setuid directory. -g, --group group The file group name or id applied to the target, see chgrp(1). This option requires superuser privileges to execute to the fullest extend, otherwise the choice of group is limited on most operating systems. Default is to skip this step and leave the operating system default which is usually based on the executing gid or the parent setgid directory. -e, --exec sed-cmd This option can be used one or multiple times to apply one or more sed(1) commands to the file contents during installation. EXAMPLE
# Makefile install: : shtool install -c -s -m 4755 foo $(bindir)/ shtool install -c -m 644 foo.man $(mandir)/man1/foo.1 shtool install -c -m 644 -e "s/@p@/$prefix/g" foo.conf $(etcdir)/ HISTORY
The GNU shtool install command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 1997 for GNU shtool. It was prompted by portability issues in the installation procedures of OSSP libraries. SEE ALSO
shtool(1), umask(1), chmod(1), chown(1), chgrp(1), strip(1), sed(1). 18-Jul-2008 shtool 2.0.8 SHTOOL-INSTALL.TMP(1)
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