cli-sedHow do I use sed to add quotes around a string in a command line interface?
Sed (stream editor) is a powerful command line tool used to perform basic text transformations on an input stream (a file or input from a pipeline). It can be used to add quotes around a string in a command line interface.
The following example shows how to use sed to add double quotes around a string:
echo "Hello World" | sed 's/\(.*\)/"\1"/'
The output of the above command will be:
"Hello World"
The command works by using the s
command to substitute the pattern \(.*\)
with the string "\1"
. The \(.*\)
pattern matches any character (.
) zero or more times (*
) and stores the match in a memory buffer denoted by \1
. The \1
is then replaced with the string "\1"
which adds double quotes around the matched string.
The following list explains the parts of the command:
echo "Hello World"
: Prints the string "Hello World" to the standard output.|
: A pipe symbol which passes the output of the previous command to the next command.sed 's/\(.*\)/"\1"/'
: The sed command which performs the substitution.\(.*\)
: A pattern which matches any character (.
) zero or more times (*
).\1
: A memory buffer which stores the match of the pattern."\1"
: The string which is substituted for the match of the pattern.
For more information about using sed to add quotes around a string, please refer to the following links:
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