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Ok so this script in from text1 file with some kind of text and numbers

#!/bin/bash
tr " " "\n"
grep '[02468]$' text1
tr "\n" " "


will print on the screen even numbers from text1 or...

for example we have text.txt file:

shell 6 3 32 programming 2 5 7 9 6 scripting 4 3 1

after we run BASH script we should see result as
6 32 2 6 4
only even numbers of the text

#!/bin/bash
echo "input n"
read n
echo "input m"
read m
m=`expr $m + 1`
x=`expr $m - $n`
head -$m text > text2
tail text2 > text3
cat text3
rm text2

well the script should look something...

Hello, i have started learning scripting with linux commands. So far I am having probelms with one task:

To make a script with from file with the text, prints even numbers used in that text.
...