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How do you use double quotes in Echo?
Use a backslash: echo “\”” # Prints one ” character. It’s done by finishing an already-opened one ( ‘ ), placing the escaped one ( \’ ), and then opening another one ( ‘ ). It’s done by finishing already opened one ( ‘ ), placing a quote in another quote ( “‘” ), and then opening another one ( ‘ ).
How do you add double quotes in bash?
From man bash To quote a generic string with double quotes, perform the following actions: Add leading and trailing double quotes: aaa ==> “aaa” Escape with a backslash every double quote character and every backslash character: ” ==> \”, \ ==> \\
How do you escape a double quote in shell?
‘ appearing in double quotes is escaped using a backslash. The backslash preceding the ‘ ! ‘ is not removed. The special parameters ‘ * ‘ and ‘ @ ‘ have special meaning when in double quotes (see Shell Parameter Expansion).
When to use single quotes or double quotes in SED?
It’s very simple when the command is enclosed in single quotes: what you see is exactly what sed sees. When using double quotes, however, your string is going to be interpreted by the shell before being passed on to sed, and you must take into account any modifications, some of which might not be what you want.
How do I use variables in a sed command?
We can use variables in sed using double quotes: If you have a slash / in the variable then use different separator, like below: Highly active question. Earn 10 reputation (not counting the association bonus) in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
How to replace a string with quote in SED?
When you require the quote character in the replacement string, you have to precede it with a backslash which will be interpreted by the shell. In the following example, the string quote me will be replaced by “quote me” (the character & is interpreted by sed): sed -i “s/quote me/\\”&\\”/” “$file”.
What’s the difference between single quotes and double quotes in Bash?
This is actually related to bash, rather than just the sed command. Double quotes evaluate the expression inside, whereas single quotes preserve the literal value of each character. More info here: https://stackoverflow.com/questions/6697753/difference-between-single-and-double-quotes-in-bash.