File redirection question Post: 302300124

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question on redirection (<<)

I came across the following problem, where file contents are overwritten using redirection. Can somebody please explain what cat << BAR seems to be doing and say why this is a problem? Explain the contents and relation between the two filenames used before the cat command. thanks /tmp# echo...

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Hi, in my script I need to execute the following command: query $id 456 432 but it waits for a RETURN character from keyboard and therefore, it fails. I tried something like: query $id 456 432 << '\n' but, i'ts clear it is not correct. Is there any way to do this? Thxs.

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Hi all, Maybe someone is able to help: Need to redirect the output of a command in realtime to a second command. Command-A executes a remote shell to another host, and outputs its results. Command-B displays a "dialog" with the outputs of Command-A. Command-A Output: Updating FileA...

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I just wondered if I'm understanding this command line correctly cat 2>save1 0<memo | sort 2>save2 1>letter This means that stdin will read from memo and if there is an error then stderr will write to save1. Am I correct in saying that the sort command will sort the memo file and write...

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I want to redirect stderr and have the following peice of code $ cat t1.ksh #!/bin/ksh func2() { diff /tmp/jdlkwjdlkejew /tmp/djlkwejdlewdjew >$OUTPUT_FILE 2>>$ERR_FILE } func1() { let counter=0 while do print -u2 "Error: In main function" func2 let...

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Hi gurus, I have a question, need some of your inputs... I have a command like this : export LINE_COUNT=`wc -l test.dat | awk '{print $1}'` echo $LINE_COUNT --- > gives me 2 which is fine as the file has 2 lines. This works fine if the file test.dat is present but in case...

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Question on bash redirection

Hi, Can I get some explanation around this bash redirection? From what I have read, x < y means call the shell to redirect the output of y into x. Does this mean that this sequence of commands is executed from right to left? diff <(sort testfile.txt) <(sort testfile2.txt) Thanks, edit...

LEARN ABOUT CENTOS

build-classpath

BUILD-CLASSPATH(1)						Java Packages Tools						BUILD-CLASSPATH(1)

NAME

       build-classpath - build a Java CLASSPATH

SYNOPSIS

       build-classpath JAR|artifact-coordinates [JAR|artifact-coordinates ...]

DESCRIPTION

       Small utility to build a Java CLASSPATH with the named JARs or Maven artifact coordinates. Artifact coordinates specify Maven artifact and
       are in format groupId:artifactId[:extension[:classifier]]:version. If extension is omitted then "jar" is used. If classifier is omitted
       then empty classifier is used. For more information see XMvn Configuration Reference. The CLASSPATH is returned to standard output.

EXAMPLES

       build-classpath junit xerces-j2 wsdl4j - this will return a string to standard out that is a valid CLASSPATH containing junit, xerces-j2,
       and wsdl4j JARs.

       build-classpath log4j:log4j org.apache.commons:commons-io - this will return a string to standard out that is a valid CLASSPATH containing
       log4j and commons-io JARs.

       build-classpath com.google.inject:guice::no_aop: - this will return a string to standard out that is a valid CLASSPATH containing
       google-guice JAR with classifier no_aop.

AUTHOR

       Originally written by David Walluck.

REPORTING BUGS

       Bugs should be reported through Red Hat Bugzilla at http://bugzilla.redhat.com/.

SEE ALSO

       build-jar-repository(1), rebuild-jar-repository(1),

JAVAPACKAGES
							    06/10/2014							BUILD-CLASSPATH(1)

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