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Full Discussion: Strange Sed !!
Top Forums Shell Programming and Scripting Strange Sed !! Post 302690681 by pamu on Thursday 23rd of August 2012 08:55:04 AM
Old 08-23-2012
Quote:
Originally Posted by vidyadhar85
Code:
 
wload/lscp/home/lscpvbf > v=1/1/1/
wload/lscp/home/lscpvbf > v=`echo $v|sed -e "s/\//\\\//g"`;echo $v
1/1/1/
wload/lscp/home/lscpvbf > v=1/1/1/
wload/lscp/home/lscpvbf > v=`echo $v|sed -e 's/\//\\\//g'`;echo $v
sed: Function s/\//\\//g cannot be parsed.
wload/lscp/home/lscpvbf > v=1/1/1/
wload/lscp/home/lscpvbf > v=`echo $v|sed -e 's?\/?\\\/?g'`;echo $v
1\/1\/1\/
wload/lscp/home/lscpvbf > uname -a
AIX tide2e16 3 5 00C7810F4C00
wload/lscp/home/lscpvbf >

Can some one please let me know the reason behind this strange behaviour of SED?
One extra backslash is there in your script....

see below output..

Code:
$ v=1/1/1/
$ echo "$v" | sed 's/\//\\/g'
1\1\1\

 

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LEARN ABOUT OSX

createhomedir

createhomedir(1)					    BSD General Commands Manual 					  createhomedir(1)

NAME

     createhomedir -- create and populate home directories on the local computer.

SYNOPSIS

     createhomedir [-scbalh] [-n directoryDomainName] [-u username]

DESCRIPTION

     createhomedir provides several options for creating and populating home directories.

OPTIONS

     -s       creates home directories for server home paths only (default).

     -c       creates home directories for local home paths only.

     -b       creates home directories for both server and local home paths.

     -a       creates home directories for users defined in all directory domains of the server's search path.

     -l       creates home directories for users defined in the local directory domain.

     -n directoryDomainName
	      creates home directories for users defined in a specific directory domain in the server's search path.

     -u username
	      creates a home directory for a specific user defined in the domain(s) identified in the -a, -l, or -n parameter. If you omit the -a,
	      -l, and -n parameters when you use the -u parameter, -a is assumed.

     -i       reads username list from standard input and creates specified home directories. Each username should be on its own line.

     -h       usage help.

FILES

     /usr/sbin/createhomedir			   location of tool

CAVEATS

     When using the -a option, search limits of various directory servers (such as Open Directory or Active Directory) can prevent all possible
     home directories from being created. In this case, you may need to specify the usernames explicitly.

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