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"$*" have few uses, the other answers cover why.

Here's a neat example of using "$*" to just "print everything" when doing error handling:

error () {
  printf '%s\n' "$*"
  exit 1
}

This script demonstrates the difference:

% cat foo.sh 
#!/usr/bin/env bash

error1 () {
  printf '%s\n' "$*"
  #exit 1
}

error2 () {
  printf '%s\n' "$@"
  #exit 1
}

error1 "aa" "bb"
echo "---"
error2 "aa" "bb"

% ./foo.sh  
aa bb
---
aa
bb

"$*" has few uses, the other answers cover why.

Here's a neat example of using "$*" to just "print everything" when doing error handling:

error () {
  printf '%s\n' "$*"
  exit 1
}

This script demonstrates the difference:

% cat foo.sh 
#!/usr/bin/env bash

error1 () {
  printf '%s\n' "$*"
  #exit 1
}

error2 () {
  printf '%s\n' "$@"
  #exit 1
}

error1 "aa" "bb"
echo "---"
error2 "aa" "bb"

% ./foo.sh  
aa bb
---
aa
bb

$* or "$*" have few uses, the other answers cover why.

Here's a neat example of using "$*" to just "print everything" when doing error handling:

error () {
  printf '%s\n' "$*"
  exit 1
}

This script demonstrates the difference:

% cat foo.sh 
#!/usr/bin/env bash

error1 () {
  printf '%s\n' "$*"
  #exit 1
}

error2 () {
  printf '%s\n' "$@"
  #exit 1
}

error1 "aa" "bb"
echo "---"
error2 "aa" "bb"

% ./foo.sh  
aa bb
---
aa
bb

"$*" have few uses, the other answers cover why.

Here's a neat example of using "$*" to just "print everything" when doing error handling:

error () {
  printf '%s\n' "$*"
  exit 1
}

This script demonstrates the difference:

% cat foo.sh 
#!/usr/bin/env bash

error1 () {
  printf '%s\n' "$*"
  #exit 1
}

error2 () {
  printf '%s\n' "$@"
  #exit 1
}

error1 "aa" "bb"
echo "---"
error2 "aa" "bb"

% ./foo.sh  
aa bb
---
aa
bb

$* or "$*" have few uses, the other answers cover why.

Here's a neat example of using "$*" to just "print everything" when doing error handling:

error () {
  printf '%s\n' "$*"
  exit 1
}

This script demonstrates the difference:

% cat foo.sh 
error1 () {
  printf '%s\n' "$*"
  #exit 1
}

error2 () {
  printf '%s\n' "$@"
  #exit 1
}

error1 "aa" "bb"
echo "---"
error2 "aa" "bb"

% ./foo.sh  
aa bb
---
aa
bb

$* or "$*" have few uses, the other answers cover why.

Here's a neat example of using "$*" to just "print everything" when doing error handling:

error () {
  printf '%s\n' "$*"
  exit 1
}

This script demonstrates the difference:

% cat foo.sh 
#!/usr/bin/env bash

error1 () {
  printf '%s\n' "$*"
  #exit 1
}

error2 () {
  printf '%s\n' "$@"
  #exit 1
}

error1 "aa" "bb"
echo "---"
error2 "aa" "bb"

% ./foo.sh  
aa bb
---
aa
bb