Which of the following characters can be combined with a separator string in order to read from the current input source until the separator string, which is on a separate line and without any trailing spaces, is reached?
Which of the following characters can be combined with a separator string in order to read from the current input source until the separator string, which is on a separate line and without any trailing spaces, is reached?
The double less-than symbol (<<) is used for here documents in many shell scripting languages. It allows reading input from the current source until a specified delimiter is encountered. When using <<, the input is read until the delimiter string is found on a separate line without any trailing spaces.
he double less-than symbol << is used for here documents in many shell scripting languages. It allows reading input from the current source until a specified delimiter is encountered. For example, consider the following command: command <<END This is the input until the END delimiter is reached. END In this case, the command would read everything between the <<END and END as input until it encounters the delimiter END on a separate line without any trailing spaces. The input is then processed by the command.