# Basic syntax
if [[ condition_1 ]]; then	echo "Code to execute if condition_1 is true"
elif [[ condition_2 ]]; then	echo "Code to execute if condition_1 is false and condition_2 is true"
else	echo "Code to execute if condition_1 and condition_2 are false"
fi
# Note, the syntax for the one-line equivalent is:
if [[ condition_1 ]]; then echo "Code to execute if condition_1 is true"; elif [[ condition_2 ]]; then echo "Code to execute if condition_1 is false and condition_2 is true"; else echo "Code to execute if condition_1 and condition_2 are false"; fi
# Note to self, see this link for more on bash operators and [ ] vs [[ ]]:
#	https://tldp.org/LDP/abs/html/comparison-ops.html

if [ "$animal" == "penguin" ]; then echo "Hmmmmmm fish... Tux happy!"
elif [ "$animal" == "dolphin" ]; then echo "Pweetpeettreetppeterdepweet!"
else echo "*prrrrrrrt*"
fi
if TEST-COMMANDS; then CONSEQUENT-COMMANDS;
elif MORE-TEST-COMMANDS; then MORE-CONSEQUENT-COMMANDS;
else ALTERNATE-CONSEQUENT-COMMANDS;
fi

if [[ some condition ]]; then do_this
elif [[ another condition ]]; then do_that_a
elif [[ yet another condition]]; then do_that_b
else do_that_default_thing
fi

if TEST-COMMAND
then STATEMENTS1
else STATEMENTS2
fi

# Very basic syntax
if [[ condition_1 ]]; then	echo "Code to execute if condition_1 is true"
elif [[ condition_2 ]]; then	echo "Code to execute if condition_1 is false and condition_2 is true"
else	echo "Code to execute if condition_1 and condition_2 are false"
fi
# Note, the syntax for the one-line equivalent is:
if [[ condition_1 ]]; then echo "Code to execute if condition_1 is true"; elif [[ condition_2 ]]; then echo "Code to execute if condition_1 is false and condition_2 is true"; else echo "Code to execute if condition_1 and condition_2 are false"; fi
# Note to self, see this link for more on bash operators and [ ] vs [[ ]]:
#	https://tldp.org/LDP/abs/html/comparison-ops.html

{"tags":[{"tag":"textarea","content":"#!/bin/sh\nx=10\ny=5\n\nif [ $x -gt $y ]; then\n echo \"$x is greater than $y\"\nelif [ $x -lt $y ]; then\n echo \"$x is less than $y\"\nelse\n echo \"$x is equal to $y\"\nfi\n\n##################\nif [[ CONDITION-TO-TEST ]]\nthen\n CODE-TO-EXECUTE-1\nelif [[ NEXT-CONDITION-TO-TEST ]]\nthen\n CODE-TO-EXECUTE-2\nelif [[ NEXT-CONDITION-TO-TEST ]]\nthen\n CODE-TO-EXECUTE-2\nelse\n CODE-TO-EXECUTE-2\nfi\n\neg :\n","code_language":"shell"}]}

if [[ condition ]]
then <execute command>
else <execute another command>
fi

#!/bin/bash
# Basic if statement
if [ $1 -gt 100 ]
then
echo Hey that\'s a large number.
pwd
fi

if [[ TEST-COMMAND ]]
then STATEMENTS1
else STATEMENTS2
fi