CODEWITHSUNDEEP
bashtrim
Nella
Nella

Reputation: 47

Trim ending white space of lines in .txt file

I am trying to remove the last space of a file.txt which contains many rows. I just need to remove "only the last space" after the third column/each line. My file looks like this:

    3 180 120
    3 123 145
    6 234 0
    4 122 12

I have been trying with the following script but it does not work, so far. Somebody can help me, please?

#!/bin/bash
var="val1 val2 val3 "
var="${var%"${var##*[![:space:]]}"}"
echo "===$var===" <Antart_csv1_copy.txt> trimmed.txt

Upvotes: 0

Views: 917

Answers (2)

nullPointer
nullPointer

Reputation: 4574

Another solution removing all trailing spaces from each line :

while read line; do echo "${line%%*( )}" >> trimmed.txt; done < Antart_csv1_copy.txt

Upvotes: 0

borievka
borievka

Reputation: 692

You can use sed:

sed -i -e 's/ $//g' filename.txt
  • -i will make the command inplace (change the original file)
  • -e 's/ $//g' will take regular expression <space><endline> and change it to nothing. Modifier g makes it for all lines in the file

You can try it first without -i and redirect output: sed -e 's/ $//g' filename.txt > trimmed.txt

Upvotes: 1

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