Linux-Ubuntu | Special Characters

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1. Examples

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1. Examples
   • The character double quote (") is used to delimit a string value.
     If the string contains special characters ($, \), they will be interpreted before returning the final result.
     $ var1=xyz $ echo "text1 $var1 \$notvar" text1 xyz $notvar
     
   • The character single quote (') is used to delimit a string value.
     If the string contains special characters ($, \), they will not be interpreted and they will be returned as is in the final result.
     $ var1=xyz $ echo 'text1 $var1 \$notvar' text1 $var1 \$notvar
     
   • The character grave accent (`) is used to delimit a string value.
     The whole string will be interpreted before returning the final result.
     $ echo `date | tr [A-Z] [a-z]` sat 24 feb 2015 16:21:33 est