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as suggested by @manatwork, no need for quotes
Source Link
steve
steve
  • 2.4k
  • 2
  • 17
  • 25

Bash, 5252 48 bytes

echo "GreetingsGreetings, Planet!"||"||!tenalP ,sgniteerG"sgniteerG ohce

Also works in ksh, zsh, yash, dash. But not tcsh.

$ cat x.sh
echo "GreetingsGreetings, Planet!"||"||!tenalP ,sgniteerG"sgniteerG ohce
$ bash x.sh
Greetings, Planet!
$ ksh x.sh
Greetings, Planet!
$ zsh x.sh
Greetings, Planet!
$ yash x.sh
Greetings, Planet!
$ dash x.sh
Greetings, Planet!
$ tcsh x.sh
tenalP: Event not found.
$

Bash, 52 bytes

echo "Greetings, Planet!"||"!tenalP ,sgniteerG" ohce

Also works in ksh, zsh, yash, dash. But not tcsh.

$ cat x.sh
echo "Greetings, Planet!"||"!tenalP ,sgniteerG" ohce
$ bash x.sh
Greetings, Planet!
$ ksh x.sh
Greetings, Planet!
$ zsh x.sh
Greetings, Planet!
$ yash x.sh
Greetings, Planet!
$ dash x.sh
Greetings, Planet!
$ tcsh x.sh
tenalP: Event not found.
$

Bash, 52 48 bytes

echo Greetings, Planet!||!tenalP ,sgniteerG ohce

Also works in ksh, zsh, yash, dash. But not tcsh.

$ cat x.sh
echo Greetings, Planet!||!tenalP ,sgniteerG ohce
$ bash x.sh
Greetings, Planet!
$ ksh x.sh
Greetings, Planet!
$ zsh x.sh
Greetings, Planet!
$ yash x.sh
Greetings, Planet!
$ dash x.sh
Greetings, Planet!
$ tcsh x.sh
tenalP: Event not found.
$
syntax highlighting
Source Link
rink.attendant.6
rink.attendant.6
  • 2.9k
  • 17
  • 30

Bash, 52 bytes

echo "Greetings, Planet!"||"!tenalP ,sgniteerG" ohce

echo "Greetings, Planet!"||"!tenalP ,sgniteerG" ohce

Also works in ksh, zsh, yash, dash. But not tcsh.

$ cat x.sh
echo "Greetings, Planet!"||"!tenalP ,sgniteerG" ohce
$ bash x.sh
Greetings, Planet!
$ ksh x.sh
Greetings, Planet!
$ zsh x.sh
Greetings, Planet!
$ yash x.sh
Greetings, Planet!
$ dash x.sh
Greetings, Planet!
$ tcsh x.sh
tenalP: Event not found.
$

Bash, 52 bytes

echo "Greetings, Planet!"||"!tenalP ,sgniteerG" ohce

Also works in ksh, zsh, yash, dash. But not tcsh.

$ cat x.sh
echo "Greetings, Planet!"||"!tenalP ,sgniteerG" ohce
$ bash x.sh
Greetings, Planet!
$ ksh x.sh
Greetings, Planet!
$ zsh x.sh
Greetings, Planet!
$ yash x.sh
Greetings, Planet!
$ dash x.sh
Greetings, Planet!
$ tcsh x.sh
tenalP: Event not found.
$

Bash, 52 bytes

echo "Greetings, Planet!"||"!tenalP ,sgniteerG" ohce

Also works in ksh, zsh, yash, dash. But not tcsh.

$ cat x.sh
echo "Greetings, Planet!"||"!tenalP ,sgniteerG" ohce
$ bash x.sh
Greetings, Planet!
$ ksh x.sh
Greetings, Planet!
$ zsh x.sh
Greetings, Planet!
$ yash x.sh
Greetings, Planet!
$ dash x.sh
Greetings, Planet!
$ tcsh x.sh
tenalP: Event not found.
$
Source Link
steve
steve
  • 2.4k
  • 2
  • 17
  • 25

Bash, 52 bytes

echo "Greetings, Planet!"||"!tenalP ,sgniteerG" ohce

Also works in ksh, zsh, yash, dash. But not tcsh.

$ cat x.sh
echo "Greetings, Planet!"||"!tenalP ,sgniteerG" ohce
$ bash x.sh
Greetings, Planet!
$ ksh x.sh
Greetings, Planet!
$ zsh x.sh
Greetings, Planet!
$ yash x.sh
Greetings, Planet!
$ dash x.sh
Greetings, Planet!
$ tcsh x.sh
tenalP: Event not found.
$