nixCraft

jaysunn · #1 (**permalink**) 26-06-2009, 08:31 PM

Hello Forum people. I have been searching the Internet for the answer to my question, and I think it may be related to the command "sort" or "uniq"

In Example. I have a file with lines of text that are not in alphabetical order.

Code:

shine:~ jaysunn$ cat file1 
asdkfokaosfknksdigjisjigjdigjmnh

ojdfojjjojddfpdfo sdfokpoopsdf jsdfojsdf

wiewieiemd iuh asdlk  this is a file blah blah

shine:~ jaysunn$

What I would like to have happen is. I want to issue a command that will take the text within file1 and put it in alphabetical order from a-z. I am pretty sure that sort or uniq can achieve this. I have tried this and was unsuccessful. The command would alphabetize the text and output file2.

Code:

shine:~ jaysunn$ sort file1 | uniq -c > file2
   4 
   1 asdkfokaosfknksdigjisjigjdigjmnh
   1 ojdfojjjojddfpdfo sdfokpoopsdf jsdfojsdf
   1 wiewieiemd iuh asdlk  this is a file blah blah
shine:~ jaysunn$

Thanks in advance.

Jaysunn

nixcraft · #2 (**permalink**) 26-06-2009, 08:57 PM

You would like to sort it based upon first character of each line?

jaysunn · #3 (**permalink**) 27-06-2009, 02:48 AM

Hey Nixcraft,
Thanks for the quick reply.

Yes my goal would be to alphabetize each string in the file in alphabetical order.

e.g.

Code:

ehqukldkg
hiuthhhtilc

To become

Code:

dehkklqu
chhhhhiiltu

Etc.......

Thanks as always for your forum and professionalism.

Jaysunn

nixcraft · #4 (**permalink**) 27-06-2009, 03:33 AM

Try the following:

PHP Code:


			
#!/bin/bash
INPUT=$1

usage(){
    echo "Usage: $0 input.txt"
    exit 1
}

die(){
    echo "$@"
    exit 2
}
[ $# -ne 2 ] && usage

[ ! -f "$INPUT" ] && die "File $INPUT does not exist!"

while read line 
do
    echo "$line" | grep -o . | sort -n |tr -d '\n'; echo ""
done < "$INPUT"

Quote:

Thanks as always for your forum and professionalism.

You're welcome!

jaysunn · #5 (**permalink**) 27-06-2009, 06:35 PM

Thanks Nixcraft....
It works like a charm.

Jaysunn

cfajohnson · #6 (**permalink**) 02-07-2009, 09:09 AM

Quote:

Originally Posted by nixcraft

Try the following:

Code:

#!/bin/bash
INPUT=$1

usage(){
    echo "Usage: $0 input.txt"
    exit 1
}

die(){
    echo "$@"
    exit 2
}
[ $# -ne 2 ] && usage

[ ! -f $INPUT ] && die "File $INPUT does not exist!"

That will fail if $INPUT contains spaces or is empty.
Code:
[ ! -f "$INPUT" ] && die "File $INPUT does not exist!"

Quote:

Code:

while read line 
do
    echo "$line" | grep -o . | sort -n |tr -d '\n'; echo ""

That can fail because most versions of grep so not have an -o option. Use
sed instead.
Code:
echo "$line" | sed 's/./&\
/g' | sort | tr -d '\n'; echo ""
(sort doesn't need the -n option.)

Quote:

Code:

done < $INPUT

That will fail if $INPUT contains spaces.
Code:
done < "$INPUT"

nixcraft · #7 (**permalink**) 02-07-2009, 11:45 AM

Quote:

That will fail if $INPUT contains spaces or is empty.
[ ! -f "$INPUT" ] && die "File $INPUT does not exist!"

How?

Code:

INPUT="this is a test.txt"
[ ! -f "$INPUT" ] && echo "No" || echo "Yes"

No

Code:

>"$INPUT"
[ ! -f "$INPUT" ] && echo "No" || echo "Yes"

Yes
And with empty

Code:

INPUT=""
 [ ! -f "$INPUT" ] && echo "No" || echo "Yes"

No

Tested on GNU bash, version 3.2.39.

cfajohnson · #8 (**permalink**) 02-07-2009, 12:35 PM

Quote:

Originally Posted by nixcraft

How?

Code:

INPUT="this is a test.txt"
[ ! -f "$INPUT" ] && echo "No" || echo "Yes"

No

Code:

>"$INPUT"
[ ! -f "$INPUT" ] && echo "No" || echo "Yes"

Yes
And with empty

Code:

INPUT=""
 [ ! -f "$INPUT" ] && echo "No" || echo "Yes"

No

Tested on GNU bash, version 3.2.39.

Now try it the way you wrote the script, without quotes around $INPUT.

It will give you error messages.

nixcraft · #9 (**permalink**) 02-07-2009, 01:45 PM

Quote:

Originally Posted by cfajohnson

Now try it the way you wrote the script, without quotes around $INPUT.

It will give you error messages.

Oh yes.. my bad, I should have tested it

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
To find and replace in text file	nashtech	Shell scripting	5	31-01-2010 06:32 AM
Shell Script To change strings / text in a text file	jaysunn	Shell scripting	1	08-05-2009 05:58 PM
Modify Text in a file	maxcell	Shell scripting	3	25-10-2008 08:33 PM
rearranging columns in a text file	sureshbup	Shell scripting	2	06-12-2006 09:43 AM
Replacing text in a file using awk	postyrus	Shell scripting	4	02-05-2005 03:31 PM

nixCraft

Alphabetize text within a file

[Solved] Alphabetize text within a file

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Similar Threads

The Following User Says Thank You to nixcraft For This Useful Post:
jaysunn (27-06-2009)

The Following User Says Thank You to cfajohnson For This Useful Post:
nixcraft (02-07-2009)