how do you keep $ dollar sign untouched within a script you touch by ssh?

Posted on 2010-09-01
Last Modified: 2012-05-10
I have a script that needs altering via an ssh touch command.  Within this script is a $2 that needs to stay intact but the ssh command is thinking it's a variable and it disappears.  How do I keep this $ intact?  Here's my ssh command and code below:

You can see various $ within the script being edited.  The main ones like ${dir} are already good to go.  I'm mainly looking at lines 56-58 where it has    $2
rm /home/atest/www/.htaccess

touch /home/atest/public_html/"$dir".htaccess
echo "# $Id: .htaccess  1 2003/06/12 10:53:20 Michael Sasek$
# This is used with Apache WebServers
# For this to work, you must include the parameter 'Options' to
# the AllowOverride configuration
# Example:
# <Directory "/usr/local/apache/htdocs">
#   AllowOverride Options
# </Directory>
# 'All' with also work. (This configuration is in the
# apache/conf/httpd.conf file)

# The following makes adjustments to the SSL protocol for Internet
# Explorer browsers

<IfModule mod_setenvif.c>
  <IfDefine SSL>
    SetEnvIf User-Agent ".*MSIE.*" \
             nokeepalive ssl-unclean-shutdown \
             downgrade-1.0 force-response-1.0

# If Search Engine Friendly URLs do not work, try enabling the
# following Apache configuration parameter
# AcceptPathInfo On

# Fix certain PHP values
# (commented out by default to prevent errors occuring on certain
# servers)
<IfModule mod_php5.c>
  php_value session.use_trans_sid 0

## SEO Url's .htaccess file
## If you want to use the Apache Mod-Rewrite method for SEO URL's
## Uncomment one of the two code blocks below, depending on where your store is installed:
## NOTE: This requires that you are on an apache web server with mod_rewrite enabled.

## If installed in a subfolder, uncomment the below block and change /folder/ to
## The directory where your shop is installed. For instance, if installed in the catalog directory
## Change it to /catalog/

RewriteEngine On
# Change "folder" to your catalog directory name
RewriteBase /${dir}
RewriteRule ^(.*)-p-(.*).html$ product_info.php?products_id=$2&%{QUERY_STRING}
RewriteRule ^(.*)-c-(.*).html$ index.php?cPath=$2&%{QUERY_STRING}
RewriteRule ^(.*)-m-(.*).html$ index.php?manufacturers_id=$2&%{QUERY_STRING}

## If installed to the base home/root directory, uncomment the below code only:

## BOF change for dynamic pages stored in the database
RewriteRule index.html index.php
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*).html$ information.php?page_alias=$1
## EOF change for dynamic pages stored in the database" > /home/atest/public_html/"$dir".htaccess

Open in new window

Question by:allwebnow
LVL 68

Accepted Solution

woolmilkporc earned 500 total points
ID: 33579705
RewriteRule ^(.*)-p-(.*).html\$ product_info.php?products_id=$2&%{QUERY_STRING}
RewriteRule ^(.*)-c-(.*).html\$ index.php?cPath=$2&%{QUERY_STRING}
RewriteRule ^(.*)-m-(.*).html\$ index.php?manufacturers_id=$2&%{QUERY_STRING}

which means: protect the concerned $ signs from being expanded by the shell using a backslash ( \ ) just in front of them.
Use this method to protect any character which needs it.



Author Comment

ID: 33579733
That was wonderful!  I knew it was something like that.  Just didn't know what the method character was.

Expert Comment

ID: 33579762
Either use single quotes, or a here-document construct, like this:

cat > /home/atest/public_html/"$dir".htaccess <<"_EOF"
# $Id: .htaccess  1 2003/06/12 10:53:20 Michael Sasek$
# This is used with Apache WebServers

See also

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Setting up Secure Ubuntu server on VMware 1.      Insert the Ubuntu Server distribution CD or attach the ISO of the CD which is in the “Datastore”. Note that it is important to install the x64 edition on servers, not the X86 editions. 2.      Power on th…
When it comes to security, there are always trade-offs between security and convenience/ease of administration. This article examines some of the main pros and cons of using key authentication vs password authentication for hosting an SFTP server.
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
Viewers will learn how to properly install and use Secure Shell (SSH) to work on projects or homework remotely. Download Secure Shell: Follow basic installation instructions: Open Secure Shell and use "Quick Connect" to enter credentials includi…

822 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question