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Full Discussion: Can I skip files when running rm command
Top Forums Shell Programming and Scripting Can I skip files when running rm command Post 302804585 by Don Cragun on Wednesday 8th of May 2013 11:47:27 PM
Old 05-09-2013
Unless you also want to delete files in subdirectories of your current directory, using find to get the list of files with names ending in .trc is grossly inefficient compared to ls *.trc. Unless you're on a system with a small value for ARG_MAX, you can skip using xargs as well using:
Code:
rm $(ls *.trc|grep -F -v -e dasd_91197.trc [-e dasd_other.trc]...)

The standards allow ARG_MAX to be as small as 4096, but on OS X it is 262144. You can find the value on your system using:
Code:
getconf ARG_MAX

If the value returned is likely to be smaller than the number of bytes needed to hold the names of the files you'll be removing plus any environment variables you're exporting, you'll need to keep the xargs element of the pipeline rather than using the above form of command substitution.
 

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LEARN ABOUT DEBIAN

snmptrapfmt

SNMPTRAPFMT(8)						      System Manager's Manual						    SNMPTRAPFMT(8)

NAME

       snmptrapfmt - Receive and log SNMP trap messages from a trap handler.

SYNOPSIS

       snmptrapfmt [-d num] [-D] [-f cfgfile]

DESCRIPTION

       Snmptrapfmt  receives  SNMP trap data through a local pipe. The trap data is written to this pipe by a SNMP trap handler which is called by
       snmptrapd (configuration is done in /etc/snmp/snmptrapd.conf) during the installation if this package.  Snmptrapfmt  formats  the  received
       trap  data  according to the specifications in the configuration file /etc/snmp/snmptrapfmt.conf (see this file for the syntax). The output
       of the snmptrapfmt application may be written to a log file or forwarded to the syslog daemon.

       The option -d 1 should be specified to enable tracing. Trace information is then written to the file /var/tmp/snmptrapfmt.trc.

       If the option -f cfgfile is given, the output of the daemon is configured via the mentioned configuration file. If this option is not spec-
       ified, a default output format is used.

       If the option -D is given, the the program will daemonize into the background.

       The syntax of the configuration file is explained in /etc/snmp/snmptrapfmt.conf !

FILES

       /etc/init.d/snmptrapfmt is the start/stop script.

       /etc/snmp/snmptrapfmt.conf is the configuration file.

       /var/run/snmptrapfmt.pid is the PID file.

       /etc/snmp/snmptrapd.conf is the configuration file of the snmptrapd daemon, which calls the trap handler snmptrapfmthdlr.

       /usr/sbin/snmptrapfmt is the executable of the application.

       /usr/sbin/snmptrapfmthdlr is the executable of the trap handler.

       /var/run/snmptrapfmt.p is the communication pipe between the trap handler snmptrapfmthdlr and the formatter snmptrapfmt.

       /var/tmp/snmptrapfmt.trc is the trace file if the option -d is specified.

       /var/log/snmptrapfmt.log is the log file as specified in the configuration file.

SEE ALSO

       snmptrapfmthdlr(8), syslog(8), variables(5), RFC 1155, RFC 1156, RFC 1157, SNMP Security Internet Drafts

4th Berkeley Distribution					 19 DECEMBER 2002						    SNMPTRAPFMT(8)
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