sh: variable substitution with heredoc -

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below part of script

 cat "${pos}" | /usr/bin/iconv -f cp1251 -t utf-8  | uniq | sed -en "/^client_id.*/!p" | while read line  ..... ......  cat >> "$tmpfile" << eof insert ......; eof  done

as can see iteration write sql statenment tmp-file. launched script regular user makes output expect, cron job - nothing. after investigation have found problem. when use "$tmpfile" without "" script works ok. so, can explain me why happens? os: freebsd, bourne shell.

iirc, cron doesn't source files login shell does, end different settings environment variables. path $tmpfile pointing contains spaces when run cron example.

also, on systems (depending on setup), cron uses different shell. if start script command line, example /usr/bin/sh might used, whereas when started cron, /bin/sh used. (i have no experience *bsd, have observed on linux.)


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