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30 lines
1.0 KiB
30 lines
1.0 KiB
#!/bin/sh |
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# To make this script executable, use the command: chmod +x 02_variables.sh |
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# To run the script, use the command: ./02_variables.sh |
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echo "This script is a spell that will teach you the basics of variables and parameter expansion in Bash." |
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echo "To study the code of the examples, please use the command: cat 02_variables_parameter_expansion.sh" |
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# Declaring a variable |
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ingredient="Dragon's blood" |
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echo "Gathering ingredients for the potion, $ingredient found." |
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# Accessing the value of a variable |
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echo "The ingredient used is: $ingredient" |
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# Re-assigning a variable |
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ingredient="Unicorn hair" |
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echo "Gathering ingredients for the potion, $ingredient found." |
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# Special variable: $# |
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echo "Number of ingredients passed to the script: $#" |
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# Special variable: $@ |
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echo "All ingredients passed to the script: $@" |
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# Special variable: $? |
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echo "Effect of the last ingredient added: $?" |
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# Parameter expansion |
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echo "The first ingredient passed to the script is: ${1}" #todo: split this into another script, maybe between 01 and 02? |
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echo "Spell cast successfully."
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