How to store the file name in a single line??

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# 1  
Old 08-10-2013
How to store the file name in a single line??

i have a variable, in which i am storing the file names that are present in the current directory.
$ls -1

$FILES=`ls -ltr | grep "^-" | awk '{print $NF}'`
$echo $FILES

i want to store the files names in a single line in the variable FILES delimited by a space.
$echo $FILES
s1.txt s2.txt s3.txt

is there a way??
# 2  
Old 08-10-2013
Simply run ls without any options:
FILES="$( ls )"

FILES="$( ls *.txt )"

# 3  
Old 08-10-2013
ls will take directory also.. n there can be other type of files also..
# 4  
Old 08-10-2013
FILES=$( ls -ltr | awk '/^-/{$0=$NF;ORS=FS;print}' )

# 5  
Old 08-11-2013
FILES=$( ls -ltr | awk '/^-/{ORS=FS;print $NF}' )
# 6  
Old 08-11-2013
FILES=$(find -name \*.txt -printf "%f ")

# 7  
Old 08-11-2013
FILES=$(find -maxdepth 1 -type f -name \*.txt)

I recommend to store them like this - newline separated!
You have the option to convert to a space-separated list on the fly
set -f; echo $FILES
for file in FILES; do

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