How do I not only rename a line in a text doc but also files?

[litlmutt]

I have been making my head explode with this one.

I am new to bash scripting but familiar in batch (ms).

I dont know if this is easier in bash or perl but I need a script that goes into a specific directory and replaces text in a file, then goes to another directory and replaces filenames. However as well as replacing a file it would need to keep it extension if it has one.

For the sake of explaining this better I will attempt to diagram this a bit.

1= old name
2= new name
File= /home/monitor/network/routers (text doc)
Loc1=/home/monitor/log/ (just a renaming of a file)
Loc2=/home/monitor/data/ (this dir has 1 and 1.dat that need to be replaced)

look for 1 and rename with 2 in file
look for 1 and rename with 2 in Loc1
look for 1 and rename with 2 in Loc2

------------------------

From what I learned, as far as the document goes it would need a Sed or Awk command. Is it possible to create a .bak of these before they are named? with the sed command i know that it is -i.* (at least i think so)

ANY help is greatly appreciated.

[i92guboj]

I have been making my head explode with this one.

I am new to bash scripting but familiar in batch (ms).

The concept is the same, though bash is many orders of magnitude more complex (I mean "featureful") than command.com

I dont know if this is easier in bash or perl

Probably in bash. But I am probably biased because I am not a master in perl :P

but I need a script that goes into a specific directory and replaces text in a file, then goes to another directory and replaces filenames. However as well as replacing a file it would need to keep it extension if it has one.

To do the first thing, as you already researched, you need sed or awk. I don't like sed much, but it's probably better suitted for this particular task.

cat <filename> | sed -e 's/<original text>/<new text>/g' > <filename>

To rename files just use the command 'mv'. It's like the DOS "move" or "rename" command (if my memory serves correctly, since I haven't used DOS for many years now).

I don't quite understand the thing you say about the extension. If you can re-word it I might be able to help with that.

Cheers.

[litlmutt]

Thank you VERY much for your help so far
What I mean with the extensions portion is my directory has 2 files

1 and 1.conn

I need to rename both of them to be named

2 and 2.conn

if i use the mv command would it keep the extension?


Whats happening and how I plan to use this:
I dont know if you guys have used hobbit

I have quite an extensive list of ip's I monitor and now have a new naming system to identify them.

In order to rename something currently I have to modify the text file and manually rename the files I explained above.

The goal: To put together a script that when run will prompt me with

Old Name:
New Name:
$echo (or verbose, a printout of whats happening)
Success or Error

as well as back up the original files before I run it.

I will figure out the menu and stuff like that but this is so you guys get an idea of the use that I am aiming towards.

Thank you for any info you guys help, really!

[i92guboj]

Thank you VERY much for your help so far
What I mean with the extensions portion is my directory has 2 files

1 and 1.conn

I need to rename both of them to be named

2 and 2.conn

if i use the mv command would it keep the extension?

Well, mv is just a simple command. They tipical usage would be:

mv file1 file2

So, it's up to you what name will you give to a given file when renaming/moving it, I suppose. It all depends on what are you exactly doing on your script.

In order to rename something currently I have to modify the text file and manually rename the files I explained above.

The goal: To put together a script that when run will prompt me with

Old Name:
New Name:
$echo (or verbose, a printout of whats happening)
Success or Error

It would be something in the lines of:

echo "Old name: "
read $old_name
echo "New name: "
read $new_name
echo "Moving $old_name to $new_name..."
mv "$old_name" "$new_name" && \
  echo "Success" ||
  echo "!!! Failed"

[scm]

mv $oldname $newname
mv $oldname.comm $newname.conn

Assuming your file extension is always .conn, of course. Your loop could look like this

while read oldname newname
do
    mv $oldname $newname
    mv $oldname.conn $newname.conn
done

In this way you could either type the two names on a single line for each file to change, or put the names in a file and pipe it into the script.