#!/bin/sh 2>&1 |tee -a /tmp/logfile
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From: kolmogolov on 10 Aug 2010 05:44 Hi, would you please help with file descriptor manipulation? I tried to manifest what I want to do in the subject line. In order to log the output of my /etc/init.d/local I'd like to be able to have a script output to both the screen and append to a logfile. But I'll need a header part and a trailer part as follows and I'm not comfortable with the sleep(1). How would you redirect simultaneously to two files, the tty and a logfile? ----------------------------- #!/bin/sh tail -f /tmp/logfile & PID=$! exec >> /tmp/logfile 2>&1 echo stdout echo >&2 stderr sleep 1 # This seems to be necessary.... kill $PID ----------------------------- My thanks in advance for your help! regards
From: Michael Tosch on 10 Aug 2010 07:35
kolmogolov(a)gmail.com wrote: > Hi, > > would you please help with file descriptor > manipulation? > > I tried to manifest what I want to do > in the subject line. > > In order to log the output of my > > /etc/init.d/local > > I'd like to be able to have a script > output to both the screen and > append to a logfile. > > But I'll need a header part and a trailer > part as follows and I'm not comfortable > with the sleep(1). > > How would you redirect simultaneously > to two files, the tty and a logfile? > > ----------------------------- > #!/bin/sh > tail -f /tmp/logfile & > PID=$! > exec >> /tmp/logfile 2>&1 > > echo stdout > echo >&2 stderr > > sleep 1 # This seems to be necessary.... > kill $PID > ----------------------------- > > My thanks in advance for your help! > regards #/bin/sh ( # sub shell echo stdout echo >&2 stderr ) 2>&1 | tee logfile -- echo imhcea\.lophc.tcs.hmo | sed 's3\(....\)\(.\{5\}\)3\2\132;s2\(.\)\(\)\(.\)2\3\12g;1s;\.;::;2' |