linux set multiline variable

DreamCoder answered on October 10, 2021 Popularity 1/10 Helpfulness 1/10

answer linux set multiline variable

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linux set multiline variable

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read -r -d '' my_variable << \
_______________________________________________________________________________

String1
String2
String3
...
StringN
_______________________________________________________________________________

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Source: stackoverflow.com

Tags: linux multiline set shell

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Contributed on Oct 10 2021

DreamCoder

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linux set multiline variable

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# in a bash script the following works:

#!/bin/sh

text="this is line one\nthis is line two\nthis is line three"
echo -e $text > filename

# alternatively:
text="this is line one
this is line two
this is line three"
echo "$text" > filename

# cat filename gives:
this is line one
this is line two
this is line three

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Source: stackoverflow.com

Tags: multiline linux shell set

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DreamCoder

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linux set multiline variable

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# You may use echo:

echo    "this is line one"   \
    "\n""this is line two"   \
    "\n""this is line three" \
    > filename
#It does not work if you put "\n" just before \ on the end of a line.


# Alternatively, you can use printf for better portability (I happened to have a lot of problems with echo):

printf '%s\n' \
    "this is line one"   \
    "this is line two"   \
    "this is line three" \
    > filename


# Yet another solution might be:

text=''
text="${text}this is line one\n"
text="${text}this is line two\n"
text="${text}this is line three\n"
printf "%b" "$text" > filename


#or

text=''
text+="this is line one\n"
text+="this is line two\n"
text+="this is line three\n"
printf "%b" "$text" > filename

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Source: stackoverflow.com

Tags: multiline set shell linux

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Contributed on Oct 10 2021

DreamCoder

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linux set multiline variable

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echo | tee /tmp/pipetest << EndOfMessage
This is line 1.
This is line 2.
Line 3.
EndOfMessage

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Source: stackoverflow.com

Tags: multiline shell linux set

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DreamCoder

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linux set multiline variable

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# If you're trying to get the string into a variable, another easy way is something like this:

USAGE=$(cat <<-END
    This is line one.
    This is line two.
    This is line three.
END
)

#If you indent your string with tabs (i.e., '\t'), the indentation will be stripped out. If you indent with spaces, the indentation will be left in.

#NOTE: It is significant that the last closing parenthesis is on another line. The END text must appear on a line by itself.

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Source: stackoverflow.com

Tags: shell set multiline linux

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Contributed on Oct 10 2021

DreamCoder

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linux set multiline variable

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