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Operating Systems Linux Ambiguous redirect error and syntax error when using on multiple files Post 302688395 by RudiC on Sunday 19th of August 2012 03:14:08 AM
Old 08-19-2012
It would be helpful to post the error messages, maybe embedded in the script's output when run with options -v and/or -x set. For now, I see the following noteworthy:
Code:
for i in "ls -l | grep ^- | awk '{print $9}'"

won't fly. For command substitution use backticks or the $(...) construct instead of double quotes. BTW, there may be better ways than this to eliminate special files.
The
Code:
grep -i "^..............ASPRODUCTSUMMARY"< "$i" > "$i";

will destroy every file in your directory that does not have the grep pattern in it and reduce those who have to the lines containing the pattern. If filenames contain special chars, e.g. space, the ambiguous redirect error may result (not sure though).
The second error you mention will probably be syntax error: unexpected end of file
and is the result of a missing ; in line 19 just in front of the done
 

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SAFE_ASTERISK(8)					     Linux Programmer's Manual						  SAFE_ASTERISK(8)

NAME
safe_asterisk -- A wrapper to run the asterisk executable in a loop SYNOPSIS
safe_asterisk [ asterisk_params ] DESCRIPTION
safe_asterisk is a script that runs asterisk in a loop, which can be useful if you fear asterisk may crash. The script does not run in the background like a standard service. Rather, it runs in its own linux virtual console (9, by default). It also uses the option '-c' of asterisk(8) to avoid detaching asterisk from that terminal. safe_asterisk also runs asterisk with unlimited core file size, and thus asterisk will dump core in case of a crash. To get a "picture" of console 9, from another terminal (e.g: from a remote shell session) you can use: screendump 9 The init script of the Debian package should be able to run safe_asterisk as the asterisk service, if so configured. See coments in /etc/default/asterisk FILES
/tmp safe_asterisk runs in that directory, rather than in / as usual. /tmp/core If core files were generated there, they may be /etc/asterisk/startup.d Files in this directory will be 'source'd by the safe_asterisk script before it starts Asterisk proper, allowing them to set addi- tional environment variables or run any other steps that are needed for your system. BUGS
While showing the output on a console is useful, using screen(1) as the terminal may be better. The script does not read configuration from standard location under /etc It uses fixed locations under /tmp , and thus may be exposed to a symlink attacks. SEE ALSO
asterisk(8), screendump(9) AUTHOR
This manual page was written by Tzafrir Cohen <tzafrir.cohen@xorcom.com> Permission is granted to copy, distribute and/or modify this docu- ment under the terms of the GNU General Public License, Version 2 any later version published by the Free Software Foundation. On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL-2. Asterisk Jun 30th, 2005 SAFE_ASTERISK(8)
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