SC1103

# shellcheck shell=zsh
export PAGER=less

Any supported shell on the shebang or the -s option

# shellcheck shell=sh
export PAGER=less

Shellcheck only supports a specific range of shell dialects, there are many more applications providing shell like experiences and some of them look and feel like POSIX shell or bash but does not support the same commands.

One notable unsupported shell type is zsh, see issue #809 about supporting zsh - some efforts have been done in the past.

The supported shell types are listed in the help context, at the moment these are

• sh
• bash
• dash
• ksh

• Similar rules
  • SC1008 - unrecognized shebang
  • SC1071 - unsupported shebang
• Documentation for shell directive