ksh - Why is exit_code not correct at end of script? -


asked in google groups, see similar questions asked here ask here also. seem scoping question, variable global far can tell.

tallied exit code zero.

thanks.

ksh -c "exit_code=0;  # list of sql files , interate through them work on db.  find ./sql_email_reports -maxdepth 1 -type f -print | while read line;  echo \"report = \" \${line};     #now sql work on db based on sql file given $line.         #and if work db fails reason, send return code                     greater zero.    rc=\$?;     # test incrementation of exit_code setting rc, should increment   exit_code every file found in directory.    rc=1     echo \"rc = \" \${rc};    (( exit_code+=rc ));    echo \"exit code =\" \${exit_code};   done;   enter code here  # reason, tallied exit_code not within while loop, still 0    echo \"tallied exit_code = \" \${exit_code};  (( exit_code > 0 )) && exit 1;  exit 0;"

the while loop runs in subshell, variable manipulations not visible parent.

this faq. http://mywiki.wooledge.org/bashfaq/024 aimed @ bash users, applies ksh , posix shell well.


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