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I've got a script 'myscript' that outputs the following:
abc def ghi in another script, I call:
declare RESULT=$(./myscript) and $RESULT gets the value
abc def ghi Is there a way to store the result either with the newlines, or with '\n' character so I can output it with 'echo -e'?
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Although Bash has various escape characters, we only need to concern ourselves with \n (new line character). For example, if we have a multiline string in a script, we can use the \n character to create a new line where necessary.
Doing: #!/bin/bash read -e -p "Multiline input=" variable; printf "'variable=%s'" "${variable}"; Typing 'multi\nline' on Multiline input= makes printf output 'variable=multinline' Typing 'multi\\nline' on Multiline input= makes printf output 'variable=multi\nline'
Use echo With the -e Option to Make Multi-Line String in Bash. The following bash script prints the words to multiline. txt without any extra spaces. The -e option enables the interpretation of escape characters in the variable greet .
Actually, RESULT contains what you want — to demonstrate:
echo "$RESULT" What you show is what you get from:
echo $RESULT As noted in the comments, the difference is that (1) the double-quoted version of the variable (echo "$RESULT") preserves internal spacing of the value exactly as it is represented in the variable — newlines, tabs, multiple blanks and all — whereas (2) the unquoted version (echo $RESULT) replaces each sequence of one or more blanks, tabs and newlines with a single space. Thus (1) preserves the shape of the input variable, whereas (2) creates a potentially very long single line of output with 'words' separated by single spaces (where a 'word' is a sequence of non-whitespace characters; there needn't be any alphanumerics in any of the words).
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