Shell Programming and Scripting

Hi, All
here is not a full version script, just post a sample.

Code:

#/bin/bash
read -p 'Addr: ' addr
sed 's/<Address>/'"$addr"'/' pf.mod>$1

If the input string include `/', sed will return error message. I know that s/// can be replaced with s::: or s!!!, etc, but the input var can accept everything.

So, I need your help to kick out the weakness of this script.
BTW: using sed is not a requirment, but I really hope that sed can do it.

Bob

You can try as,

#/bin/bash
read -p 'Addr: " addr
awk '{ if ( $1 ~ "<Address>") { print address } }' address=$addr <filename>

hth.

muthukumar, thank you for your reply. I am not doing a full test, but I think it works after modifying the code according to the pf.mod contents that I am not post at last time.

here is the pf.mod.

Code:

hello <customer> blah blah
...
...
blah blah ...<address> blah blah
...
...
Address: <address>
...
...

The reason why your original script fails is that sed interprets some characters as metacharacters. Escape them prior to feeding them to sed (by setting a "\" in fromt of them) and everything will work out fine:

Code:

addr="$(print - "$addr" | sed 's/\//\&/g')"

Hope this helps.

bakunin

Thank you. Well, the world is not perfect , I am ready to use AWK or escape the backslash at begining.
Thanks again.