I have a text file (1.txt) as follows:

```
word1
word2
word3

```

I use sed to add strings to the beginning and end of every line as follows:

```
sed 's/^/blahblah1  /g' 1.txt > 2.txt
sed 's/$/  blahblah2/g' 2.txt > 3.txt

```

resulting in:

```
blahblah1  word1  blahblah2
blahblah1  word2  blahblah2
blahblah1  word3  blahblah2

```

This works fine, but I want to do something further.

I want to copy the strings in the middle of each line (word1, word2, etc.) to the end of every line as follows:

```
blahblah1  word1  blahblah2 word1
blahblah1  word2  blahblah2 word2
blahblah1  word3  blahblah2 word3

```

PLEASE NOTE that blahblah1 and blahblah2 are just representing bash commands and other string text AND are the same at the beginning and end of every line as the sed commands illustrate – the strings between them are DIFFERENT – and the strings are not actually "blahblah1" and "blahblah2".

Any suggestions?

Basically, I'm taking a text file containing a list of strings and want to create a bash script containing a list of commands to grab lines of code containing a string and dump them to files with a file name containing that string – hence the structure of each line.