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Hi experts can anyone help me on this...
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@woolmilkporc:This is run in tcsh shell.Is tcsh shell obsolete?
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@woolmilkporc:This is run in tcsh shell.Is tcsh shell obsolete?

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No, tcsh is not at all obsolete.<br />
<br />
csh is rather old and a bit inconvenient, but is not obsolete either.<br />
<br />
What I meant to say is that the redirection format &quot;&gt;!&quot; is no longer mandatory for non-existing output files in neither shell, but can still be used in csh and tcsh nonetheless. ksh and bash don't recognize this format, however.<br />
<br />
Thx for the points!<br />
<br />
wmp
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No, tcsh is not at all obsolete.

csh is rather old and a bit inconvenient, but is not obsolete either.

What I meant to say is that the redirection format ">!" is no longer mandatory for non-existing output files in neither shell, but can still be used in csh and tcsh nonetheless. ksh and bash don't recognize this format, however.

Thx for the points!

wmp

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Hi experts...<br />
I am a newbie to UNIX.I found an Nawk command and have no idea what it means.Can anyone explain this command bit by bit<br />
nawk -F &quot;|&quot; '{i=1;while(i&lt;=NF){gsub(/^<wbr />[ \t]+|[ \t]+$/,&quot;&quot;, $i); if (length($i)&gt;0) printf(&quot;%s|&quot;,$i) ; if (i==NF){printf(&quot;\n&quot;)}; &nbsp;i++}}' $rej_list | sed -e 's/.$//' &gt;! $rej_list_fmt<br />
Please help...<br />
<br />

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Hi experts...
I am a newbie to UNIX.I found an Nawk command and have no idea what it means.Can anyone explain this command bit by bit
nawk -F "|" '{i=1;while(i<=NF){gsub(/^[ \t]+|[ \t]+$/,"", $i); if (length($i)>0) printf("%s|",$i) ; if (i==NF){printf("\n")};  i++}}' $rej_list | sed -e 's/.$//' >! $rej_list_fmt
Please help...



NAWK command help

The term 'shell' refers to a general class of text-based command interpreters most often associated with the UNIX and Linux operating systems. Popular shells include Bourne, Debian Almquist (dash), Korn (ksh), Bourne Again (bash) and the C shell family (csh). Some view the DOS 'cmd' prompt as a minimal shell of sorts. It is also possible to install Cygwin on Windows and emulate a full Unix environment with complete shell capabilities. Terminal emulators, such as xterm, GNOME Terminal and OS X Terminal, can be used to access shell.