== LF/CR issue with RS232 in Linux ==
stty -F /dev/ttyS0 -onlcr
stty -F /deb/ttyS0 -icrnl
2011年3月31日 星期四
2011年3月11日 星期五
Redirect stderr to file
IO index is:
1 is stdout
2 is stderr
===Redirect stderr to 'log.txt' file===
$ someprogram 2> log.txt
===Redirect stderr to stdout===
$ someprogram 2>&1 | less
===Redirect stderr and stdout to a file===
$ someprogram &> log.txt
1 is stdout
2 is stderr
===Redirect stderr to 'log.txt' file===
$ someprogram 2> log.txt
===Redirect stderr to stdout===
$ someprogram 2>&1 | less
===Redirect stderr and stdout to a file===
$ someprogram &> log.txt
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