SHELL

bash multiple commands one line

# Basic syntax:
# This will run command_2 after command_1 regardless of whether command_1
# completes successfully or not:
command_1; command_2
# This will run command_2 after command_1 if command_1 completes successfully:
command_1 && command_2
# This will run command_2 after command_1 if command_1 fails:
command_1 || command_2
# This will pass (pipe) the standard output of command_1 to command_2:
command_1 | command_2

bash for loop multiple commands one line

# Basic syntax:
for i in a b; do echo $i; printf "$i	$i
"; done
# Where:
#	- each command in the for loop needs to be separated by semicolons. Here
#		we echo $i and then print $i<tab>$i<newline>
#	- over several lines this would be equivalent to:
for i in a b
do
  echo $i
  printf "$i	$i
"
done