LINES and FIRST WORDS of THOSE LINES

Shell Programming and Scripting
1

Hi everyone! I need your help. Can not find out what I am doing wrong :frowning:

I have a file 1.txt. It looks like

apple orange juice
table computer banana
tea weather home
bed water mandarin

So I need to print only first words of each line like

apple
table
tea
bed

My script looks like

#!/bin/sh
for i in `cat 1.txt`
do
echo `cat 1.txt`| awk '{print $1}' 1.txt
done

But it do not work properly ;( can anyone help me?

2

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3 
awk '{print $1}' <1.txt
4

when I run this
#!/bin/sh
for line in `cat 1.txt`
do
#echo "$line"
echo awk `{print $1}` < 1.txt
done
it gives me
apple
orange
juice
table
etc.

But I need only
apple
table
tea
bed ;(

5

try:

#!/bin/sh
 
while read a b
do
   echo $a
done < 1.txt
6

Did you check joeyg's post - #3

You just need to run a single line awk program:

awk '{print $1}' 1.txt
7

If you do not mind can explain why a b? what does it mean???? sorry, i am new in shell....P.S. it works btw, I just want to understand. Thank you for helping

8

read first word of line into variable a the rest goes into variable b .

1 Like
9

Thread closed as it seems to be homework