bash - Execute another script inside heredoc Doc That expect user input in shell -

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i have script based upon user input need call script run pbrun admin made menu ps3 , select , based upon input call function inside i'm running pbrun , pass here doc input this.

function calls { pbrun -l /bin/su - admin <<'inner_eof' /home/ankur/testwithout.ksh inner_eof }

now every thing runs fine if call script uses ps3 , select give menu , needs user input command line proceed i'm not able provide calling script input provided input taken script not 1 call admin

any idea how can achieve this.?

ps: cannot use expect cannot install it. not have access install on systems.

admin script written using ksh shell

seems me want pipe output:

/home/ankur/testwithout.ksh | pbrun -l /bin/su - admin

or use process substitution:

pbrun -l /bin/su - admin < <(/home/ankur/testwithout.ksh)

command <(...) process substitution, creates temporary "file" in /proc/self/fd/ ... write to, , temporary file's name returned argument command:

% echo <(ls) /proc/self/fd/11

here docs text, , << 'xyz' input interpreted single quoted string, command substitution wouldn't work, , neither parameter expansion.

command < file redirect file input command.


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