bash help? append text to textfile entries

embsupafly · 08-03-2005, 02:50 PM

I need to write a bash script, perl would be ok as well that would do this:

I have a flat text file with thousands of entries such as this:

file1
file2
big_file
little_file
file

And so on.

What I need to do is append ".eps" at the end of these entries that are listed above, and like I said there are thousands in each file so I don't want to have to do it manually.

Any help or direction would be appreciated.

Thanks,

Eric

kjordan · 08-03-2005, 02:54 PM

One simple sed should do it.

sed -i -e "s@.*@&.eps@g" yourfile

embsupafly · 08-03-2005, 03:23 PM

Quote:

Originally posted by kjordan
One simple sed should do it.

sed -i -e "s@.*@&.eps@g" yourfile

That Kind of worked but now the entries look like this:

Aamco_Transmissions^M.eps
AAPS^M.eps
Aarons_Rental_Furniture^M.eps
AARP^M.eps
American_Bikers_Association^M.eps
Abbott^M.eps
ABC^M.eps

I don't know why the ^M has been added. But we can't have it there.

kjordan · 08-03-2005, 03:36 PM

Was your original file made on Windows? If so, you'll need to convert it: http://www.lugbz.org/content/section...ommands14.html

vladmihaisima · 08-03-2005, 03:38 PM

You should first try calling :

Code:

dos2unix filename

The ^M are there because the file were created in a Windows environment

schneidz · 08-03-2005, 03:40 PM

i think something similar this will do it:
sed s/^M/""/g

(i'm at work so i haven't tested it.)

not sure if the 'ctrl-M' are a unix new line (single ascii char) or is actually a carot (^) and an 'M'.

hope this works,
schneidz

kjordan · 08-03-2005, 03:42 PM

Quote:

Originally posted by schneidz
i think something similar this will do it:
sed s/^M/""/g

(i'm at work so i haven't tested it.)

not sure if the 'ctrl-M' are a unix new line (single ascii char) or is actually a carot (^) and an 'M'.

hope this works,
schneidz

ctrl-v ctrl-m will do the ^M.

urka58 · 08-03-2005, 06:09 PM

One method to convert dos text files into UNIX is

sed -e 's/.$//' mydos.txt > myunix.txt # this will replace (erase) the carriage return from the end of the lines.

For your script I would try

#!/bin/sh
for i in `cat myfile`
do
echo "$i.eps" >> myfile.eps
done

myfile of course is the name of the file you want to edit

Hope this helps
Ciao

eddiebaby1023 · 08-07-2005, 06:01 AM

You guys like to make work! Just use

Code:

sed 's/Ctl-VCtl-M*$/.eps/' yourfile >newfile

Ctl-V and Ctl-M are typed by holding down the control key and typing 'V' and then 'M'. It'll work even if there are no ^Ms in the file. You may also find the last line in the file has a ^Z in it - you can safely delete this.

vladmihaisima · 08-07-2005, 07:01 AM

Why don't use just dos2unix ? I used it succefully many times on text files and works great.

(just curious)