On Tue, 02.03.2010 um 15:41 +0530, Kalidas Yeturu wrote: > Logically equivalent statements output different results. Suspect > problem with 'pipe'. >
This is not a bug, quoting man bash: > Each command in a pipeline is executed as a separate process (i.e., > in a subshell). http://mywiki.wooledge.org/BashFAQ/024 covers this with more details.
