Shell Programming and Scripting

Hello,

I have a .htaccess file as follows... No I want to comment the last line ( in this case.. it may not be a last line for other cases).. please advise how to add a # (comment infront of "Options All -Indexes" not assuming this line to be the last line using sed.

root@server1 [/home/name/public_html]# cat .htaccess
# -FrontPage-

IndexIgnore .htaccess */.??* *~ *# */HEADER* */README* */_vti*

<Limit GET POST>
order deny,allow
deny from all
allow from all
</Limit>
<Limit PUT DELETE>
order deny,allow
deny from all
</Limit>


Options All -Indexes
root@server1 [/home/name/public_html]#


Result should be like
------------------------

root@server1 [/home/name/public_html]# cat .htaccess
# -FrontPage-

IndexIgnore .htaccess */.??* *~ *# */HEADER* */README* */_vti*

<Limit GET POST>
order deny,allow
deny from all
allow from all
</Limit>
<Limit PUT DELETE>
order deny,allow
deny from all
</Limit>


#Options All -Indexes
root@server1 [/home/name/public_html]#




Please advise.

Thanks.

sed 's/Options All -Indexes/#Options All -Indexes/' filename

assuming single occurrence of pattern
else use /g

Thanks... works beautifully.


How about say.. I have some 50 files in a folder... which are actually valiases files.. where the catch all or default address is set as ....

*: username for a domain... xyz.com

*: username1 for a domain... abc.com


I.e.

if you do ..

cat /etc/valiases/xyz.com
*: username

cat /etc/valiases/abc.com
*: username1

cat /etc/valiases/def.com
*: username2


Now.. i want to replace all instances of ..

*: username2 or *: username or *: username1 to

*: :fail: No Such Address Here



So after conversion..

cat /etc/valiases/def.com
*: :fail: No Such Address Here

same for other domains..


Can you please advise.


Thanks.

Code:

perl -i -ne ' print "*: :fail: No Such Address Here\n" if( /^\*:/ ) ' /etc/valiases/*.com

Code:

sed 's/\*: username.*/\*: :fail: No Such Address Here/' file

Hello,

Its working.. but it prints the output.. how can I make a script so that it changes the line automatically.

root@dallas [/opt/abc]# sed 's/\*: username.*/\*: :fail: No Such Address Here/g' *
*: :fail: No Such Address Here
*: :fail: No Such Address Here
*: :fail: No Such Address Here
root@dallas [/opt/abc]# cat abc.com
*: username1

root@dallas [/opt/abc]# ls
./ ../ abc.com def.com xyz.com
root@dallas [/opt/abc]#


This doesnot seem to be working.
-------------------------------------
root@dallas [/opt/abc]# perl -i -ne ' print "*: :fail: No Such Address Here\n" if( /^\*:/ ) ' /etc/valiases/*.com
root@dallas [/opt/abc]# cat abc.com
*: username1

This command has changed files in /etc/valiases directory. In which directory are you checking the files?