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nuttx-apps/include/nshlib
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fangpeina 35f3690a4c nshlib: Add stderr redirection support 
This commit implements stderr redirection in HSN, support
Bash-like syntax for redirecting standard error output.
Support both foreground and background commands.

example:
- nsh> ls noexists 2> err.log
- nsh> ls noexists 2> err.log &
- nsh> ls noexists 2>> err.log
- nsh> sh < /dev/ttyS0 > /dev/ttyS0 2> /dev/ttyS1 &
- nsh> sh < /dev/ttyS0 > /dev/ttyS0 2>&1 &

Signed-off-by: fangpeina <fangpeina@xiaomi.com>
2026-01-27 03:14:00 +08:00
..
nshlib.h nshlib: Add stderr redirection support 2026-01-27 03:14:00 +08:00