grep two strings from a file and write into a txt

Question

Could you please help me how to grep two strings (or the whole lines) from one file and write them on the same line in output file?

grep -e "string1 string2" inputfile > output.txt doesn't work

for one string it works:

grep -e "string1" inputfile > output.txt

thx!

score 1 · Accepted Answer · answered Nov 18 '14 at 09:18

1

Change your grep command like below,

grep -o 'string1\|string2' file | paste - - > out.txt

This writes string1 string2 in a single line on out.txt

answered Nov 18 '14 at 09:18

Avinash Raj

yes it works, only I have to use -e except of -o to grep the whole line, thx – user3041107 Nov 18 '14 at 09:22
1

yep, remove `-o` to grep the whole line. – Avinash Raj Nov 18 '14 at 09:24
The current solution is almost equivalent to `echo "string1 string2" > out.txt` :D – fedorqui Nov 18 '14 at 09:24

1 Answers1