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55 lines
1.6 KiB
55 lines
1.6 KiB
2 years ago
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#!/bin/sh
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To make this script executable, use the command: chmod +x 14_boolean_comparison.sh
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To run the script, use the command: ./14_boolean_comparison.sh
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echo "This spell will teach you the basics of boolean values and basic string comparison in POSIX-compliant Bash"
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echo "To study the code of the examples, please use the command: cat 14_boolean_comparison.sh"
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Basic string comparison
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string1="magic"
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string2="wizardry"
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echo "Are 'magic' and 'wizardry' the same? (Should be false)"
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[ "$string1" = "$string2" ]
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echo $?
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echo "Are 'magic' and 'magic' the same? (Should be true)"
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[ "$string1" = "$string1" ]
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echo $?
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echo "Is 'magic' not 'wizardry'? (Should be true)"
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[ "$string1" != "$string2" ]
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echo $?
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echo "Is 'magic' greater than 'wizardry'? (Should be false)"
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[ "$string1" > "$string2" ]
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echo $?
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echo "Is 'wizardry' greater than 'magic'? (Should be true)"
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[ "$string2" > "$string1" ]
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echo $?
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echo "Spell cast successfully"
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# To make this script executable, use the command: chmod +x 23_boolean_values.sh
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# To run the script, use the command: ./23_boolean_values.sh
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echo "This spell will teach you the basics of boolean values and string comparison in POSIX-compliant Bash."
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echo "To study the code of the examples, please use the command: cat 23_boolean_values.sh"
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# Basic boolean values
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echo $((1 == 1)) # 0
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echo $((1 != 1)) # 1
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echo $((1 > 2)) # 1
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echo $((1 < 2)) # 0
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# Basic string comparison
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string1="Hello"
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string2="World"
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echo $((string1 == string2)) # 0
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echo $((string1 != string2)) # 1
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echo $((string1 > string2)) # 1
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echo $((string1 < string2)) # 0
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echo "Spell cast successfully"
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