help with script

[Jairo Campana]

hello, I have a file and I want to insert a word at the beginning example

cat file1
john
carl

I want to insert the word hello
obtaing:
cat file1
hello john
hello carl
hello ...
hello ...
....
..

[James R. Ferguson]

Hi:

# sed -n 's/^/hello /p' file1

Regards!

...JRF...

[Jeff_Traigle]

One way among many...


ed file1 <1,\$s/^/hello /g
w
q
EOC

[A. Clay Stephenson]

and still another:

cat file1 | while read X
do
echo "hello ${X}"
done

[James R. Ferguson · Accepted solution]

Hi (again):

Yet another, which updates your file "inplace" is:

# perl -pi -e 's/^/hello /' file1

Regards!

...JRF...

[Jairo Campana]

Clay , I change "${X}" for $X
with "{}" no working in the while.

and still another:

cat file1 | while read X
do
echo "hello $X"
done

thanks to all for the aid

[Sandman!]

awk '{print "hello "$0}' file1

[Jairo Campana]

the perl this is a best option .