[SOLVED] How to exclude end of lines of textfiles via terminal?

Issue

Given a file ./wordslist.txt with <word> <number_of_apparitions> such as :

aš toto 39626
ir 35938
tai 33361
tu 28520
kad 26213
...

How to exclude the end-of-lines digits in order to collect in output.txt data such :

aš toto
ir
tai
tu
kad
...

Note : Sed, find, cut or grep prefered. I cannot use something which keeps [a-z] things since my data can contain ascii letters, non-ascii letters, chinese characters, digits, etc.

Solution

I suggest:

cut -d " " -f 1 wordslist.txt > output.txt

Or :

sed -E 's/ [0-9]+$//' wordslist.txt > output.txt.

Answered By - Cyrus