/usr/ucb/ps command output to screen shows a long list envrionment variable and its values, but when redirecting output to a file yields a truncated line.
How to explain this?
bash-3.2$ /usr/ucb/ps -auxwee 6543 >/var/tmp/env-var 2>&1
bash-3.2$ cat /var/tmp/env-var
USER PID %CPU %MEM SZ RSS TT S START TIME COMMAND
alcrprun 6543 0.0 0.0 8752 5992 ? S 19:35:01 0:15 /usr/bin/python -Bu ./bin/dpfoservice.py CFG_HOME=/opt/apps/algo/algoS
bash-3.2$ /usr/ucb/ps -auxwee 6543
USER PID %CPU %MEM SZ RSS TT S START TIME COMMAND
alcrprun 6543 0.0 0.0 8752 5992 ? S 19:35:01 0:15 /usr/bin/python -Bu ./bin/dpfoservice.py CFG_HOME=/opt/apps/algo/algoSuite.current.solaris.alcr/cfg RISK_HOME=/opt/apps/algo/algoSuite.current.solaris.alcr/risk++ ALGO_HOME=/opt/apps/algo/algoSuite.current.solaris.alcr ARE_HOME=/opt/apps/algo/algoSuite.current.solaris.alcr/aggregation/are
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It prints a 132-wide output to a file because that's what the -w argument does. Per the ps.1b man page:
-w
Uses a wide output format (132 columns rather than 80); if repeated, that is,
-ww, use arbitrarily wide output. This information is used to decide how much of long commands to print.
If you want arbitrary-width output, use -ww instead of -w.
When using just the -w option and the output is a terminal window, /usr/ucb/ps appears to detect the terminal width on my copy of Solaris 11 - changing the width of the window modifies the amount of output emitted with just the -w option. The documentation for that behavior is likely buried somewhere on a Solaris man page, give the historical nature of Solaris documentation.