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axel
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\section read read - read line of input into variables
\subsection read-synopsis Synopsis
<tt>read [OPTIONS] [VARIABLES...]</tt>
\subsection read-description Description
The <tt>read</tt> builtin causes fish to read one line from standard
input and store the result in one or more environment variables.
- <tt>-e</tt> or <tt>--export</tt> specifies that the variables will be exported to subshells.
- <tt>-g</tt> or <tt>--global</tt> specifies that the variables will be made global.
- <tt>-pPROMPT_CMD</tt> or <tt>--prompt=PROMPT_CMD</tt> specifies that the output of the shell command PROMPT_CMD should be used as the prompt for the interactive mode prompt. The default prompt command is <tt>set_color green; echo read; set_color normal; echo "> "</tt>.
- <tt>-cCMD</tt> or <tt>--command=CMD</tt> specifies that the initial string in the interactive mode command buffer should be CMD.
Read starts by reading a single line of input from stdin, the line is
then tokenized using the <tt>IFS</tt> environment variable. Each variable
specified in <tt>VARIABLES</tt> is then assigned one tokenized string
element. If there are more tokens than variables, the complete
remainder is assigned to the last variable.
\subsection read-example Example
<tt>echo hello|read foo</tt>
Will cause the variable \$foo to be assigned the value hello.