shopt -s xpg_echo is not propagated anymore in subshell

Solution Verified - Updated -


  • When switching the bash option xpg_echo with shopt, a new script does not inherit of the setting.
  • For example:

    $ cat :
    shopt -s xpg_echo
    echo "\t 1st test"
    $ cat
    echo "\t 2nd test"
  • The output is:

             1st test
    \t 2nd test

=> in second script, \t is not interpreted as tabulation.

  • In RHEL 7, the echo of \t from second script is interpreted (if we add shopt -p xpg_echo, we ca see the value of the option):

             1st test
    shopt -s xpg_echo
             2nd test


  • Red Hat Enterprise Linux 8
  • bash 4.4

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