Why does echo -e “n” give me two blank lines instead of one?
Let's say there's a line "aaaa" in file.txt, and I want to add ONLY ONE blank line after it, and then add a line of text after the blank line.
I did:
echo -e "n" >> file.txt
echo "bbbb" >> file.txt
And then I saw TWO blank lines between aaaa and bbbb
When I use only echo "bbbb" >> file.txt then there's no blank line between the two text line.
Why does this happen, and how do I get rid of it?
bash text-processing text-formatting
asked 6 mins ago
OhLookOhLook
1265
add a comment |
Let's say there's a line "aaaa" in file.txt, and I want to add ONLY ONE blank line after it, and then add a line of text after the blank line.
I did:
echo -e "n" >> file.txt
echo "bbbb" >> file.txt
And then I saw TWO blank lines between aaaa and bbbb
When I use only echo "bbbb" >> file.txt then there's no blank line between the two text line.
Why does this happen, and how do I get rid of it?
bash text-processing text-formatting
asked 6 mins ago
OhLookOhLook
1265
add a comment |
Let's say there's a line "aaaa" in file.txt, and I want to add ONLY ONE blank line after it, and then add a line of text after the blank line.
I did:
echo -e "n" >> file.txt
echo "bbbb" >> file.txt
And then I saw TWO blank lines between aaaa and bbbb
When I use only echo "bbbb" >> file.txt then there's no blank line between the two text line.
Why does this happen, and how do I get rid of it?
bash text-processing text-formatting
asked 6 mins ago
OhLookOhLook
1265
Let's say there's a line "aaaa" in file.txt, and I want to add ONLY ONE blank line after it, and then add a line of text after the blank line.
I did:
echo -e "n" >> file.txt
echo "bbbb" >> file.txt
And then I saw TWO blank lines between aaaa and bbbb
When I use only echo "bbbb" >> file.txt then there's no blank line between the two text line.
Why does this happen, and how do I get rid of it?
bash text-processing text-formatting
bash text-processing text-formatting
asked 6 mins ago
OhLookOhLook
1265
asked 6 mins ago
OhLookOhLook
1265
asked 6 mins ago
OhLookOhLook
1265
asked 6 mins ago
OhLookOhLook
1265
asked 6 mins ago
OhLookOhLook
1265
1265
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
With
echo "string"
you get string and a newline at the end.
Therefore, with
echo -e "n"
you will get your newline, and a newline at the end.
If you don't want the extra newline, use echo with its -n option.
From help echo in bash:
Options:
-n do not append a newline
-e enable interpretation of the following backslash escapes
If you want something that is portable to other shells besides bash, use printf instead:
printf 'n' >>file.txt
printf 'bbbbn' >>file.txt
Or, another way of doing those two statements with a single redirection:
{
printf 'n'
printf 'bbbbn'
} >>file.txt
Or simply
printf 'nbbbbn' >>file.txt
answered 4 mins ago
KusalanandaKusalananda
133k17253416
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
With
echo "string"
you get string and a newline at the end.
Therefore, with
echo -e "n"
you will get your newline, and a newline at the end.
If you don't want the extra newline, use echo with its -n option.
From help echo in bash:
Options:
-n do not append a newline
-e enable interpretation of the following backslash escapes
If you want something that is portable to other shells besides bash, use printf instead:
printf 'n' >>file.txt
printf 'bbbbn' >>file.txt
Or, another way of doing those two statements with a single redirection:
{
printf 'n'
printf 'bbbbn'
} >>file.txt
Or simply
printf 'nbbbbn' >>file.txt
answered 4 mins ago
KusalanandaKusalananda
133k17253416
add a comment |
With
echo "string"
you get string and a newline at the end.
Therefore, with
echo -e "n"
you will get your newline, and a newline at the end.
If you don't want the extra newline, use echo with its -n option.
From help echo in bash:
Options:
-n do not append a newline
-e enable interpretation of the following backslash escapes
If you want something that is portable to other shells besides bash, use printf instead:
printf 'n' >>file.txt
printf 'bbbbn' >>file.txt
Or, another way of doing those two statements with a single redirection:
{
printf 'n'
printf 'bbbbn'
} >>file.txt
Or simply
printf 'nbbbbn' >>file.txt
answered 4 mins ago
KusalanandaKusalananda
133k17253416
add a comment |
With
echo "string"
you get string and a newline at the end.
Therefore, with
echo -e "n"
you will get your newline, and a newline at the end.
If you don't want the extra newline, use echo with its -n option.
From help echo in bash:
Options:
-n do not append a newline
-e enable interpretation of the following backslash escapes
If you want something that is portable to other shells besides bash, use printf instead:
printf 'n' >>file.txt
printf 'bbbbn' >>file.txt
Or, another way of doing those two statements with a single redirection:
{
printf 'n'
printf 'bbbbn'
} >>file.txt
Or simply
printf 'nbbbbn' >>file.txt
answered 4 mins ago
KusalanandaKusalananda
133k17253416
With
echo "string"
you get string and a newline at the end.
Therefore, with
echo -e "n"
you will get your newline, and a newline at the end.
If you don't want the extra newline, use echo with its -n option.
From help echo in bash:
Options:
-n do not append a newline
-e enable interpretation of the following backslash escapes
If you want something that is portable to other shells besides bash, use printf instead:
printf 'n' >>file.txt
printf 'bbbbn' >>file.txt
Or, another way of doing those two statements with a single redirection:
{
printf 'n'
printf 'bbbbn'
} >>file.txt
Or simply
printf 'nbbbbn' >>file.txt
answered 4 mins ago
KusalanandaKusalananda
133k17253416
answered 4 mins ago
KusalanandaKusalananda
133k17253416
answered 4 mins ago
KusalanandaKusalananda
133k17253416
answered 4 mins ago
KusalanandaKusalananda
133k17253416
133k17253416
add a comment |
add a comment |
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