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replace all tabs, multiple tabs and multiple spaces, white spaces with single space

replace all tabs, multiple tabs and multiple spaces, white spaces with single space

replace all tabs, multiple tabs and multiple spaces, white spaces with single space

(OP)
hi,
the input file text contains multiple spaces, tabs, multible tabs and I need to replace all of them with single space

which command removes all leading and trailins spaces:

sed "s/^[[:space:]]*//;s/[[:space:]]*$//"

I tried to use this for removign white spaces inside the it doesn't do it.. (the red commands)

CODE

# echo "  \t     sdfsd s            sdfs        sdfs            ete\t"
             sdfsd s            sdfs        sdfs            ete
# echo "  \t     sdfsd s            sdfs        sdfs            ete\t"|sed "s/^[[:space:]]*//;s/[[:space:]]*$//"
sdfsd s            sdfs        sdfs            ete
# echo "  \t     sdfsd s            sdfs        sdfs            ete\t"|sed "s/^[[:space:]]*//;s/[[:space:]]*$//"|sed s/$/\|/
sdfsd s            sdfs        sdfs            ete|
# echo "  \t     sdfsd s            sdfs        sdfs            ete\t"|sed "s/^[[:space:]]*//;s/[[:space:]]*$//"|sed "s/[[:space:]]*/\ /"
 sdfsd s            sdfs        sdfs            ete
# echo "  \t     sdfsd s            sdfs        sdfs            ete\t"|sed "s/^[[:space:]]*//;s/[[:space:]]*$//"|sed "s/[[:space:]]*/\ /g"
 s d f s d s s d f s s d f s e t e
# 

what the last sed on pipe should be?

RE: replace all tabs, multiple tabs and multiple spaces, white spaces with single space

hello

how could I get the same in awk?

something easier from? :

awk '{ for (f=1; f <= NF; f++) { printf("%s ", $f);} print("");}'

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