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Top Forums UNIX for Dummies Questions & Answers Regarding redirection using cat. Post 302227364 by spirtle on Thursday 21st of August 2008 04:59:33 AM
Old 08-21-2008
Quote:
1) cat < K1 K2
The above operation should actually display contents of the both files.
I'm curious, what makes you think it should do that? My man page states
Quote:
Concatenate FILE(s), or standard input, to standard output.
(my emphasis), which I understand to mean "not both", i.e. if you give cat a file to read from, standard input is ignored.

Code:
cat > K1 K2

Like Latin, the word order is not as important as the syntax. >K1 means that the output goes into K1. You can achieve the same affect with
Code:
>K1 cat K2

 

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BZEXE(1)						      General Commands Manual							  BZEXE(1)

NAME
bzexe - compress executable files in place SYNOPSIS
bzexe [ name ... ] DESCRIPTION
The bzexe utility allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a penalty in performance). For example if you execute ``bzexe /bin/cat'' it will create the following two files: -r-xr-xr-x 1 root bin 9644 Feb 11 11:16 /bin/cat -r-xr-xr-x 1 bin bin 24576 Nov 23 13:21 /bin/cat~ /bin/cat~ is the original file and /bin/cat is the self-uncompressing executable file. You can remove /bin/cat~ once you are sure that /bin/cat works properly. This utility is most useful on systems with very small disks. OPTIONS
-d Decompress the given executables instead of compressing them. SEE ALSO
bzip2(1), znew(1), zmore(1), zcmp(1), zforce(1) CAVEATS
The compressed executable is a shell script. This may create some security holes. In particular, the compressed executable relies on the PATH environment variable to find gzip and some other utilities (tail, chmod, ln, sleep). BUGS
bzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually in some cases, using chmod or chown. BZEXE(1)
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