Fix pipe command

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1. Shell Programming and Scripting

Would pipe work better with this command

Hi again, have a script that I would like run, but before I can run it I need to strip out the windows \r end of lines. I have put the command into a text file and set the command to run every 10 seconds the coomand I use to do this is while sleep 10; do...

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Pipe command to script

Hello to all, Having a ruby script that works when an argument is given in command line in this way: ruby script.rb input_to_ruby To accept arguments as input, inside the ruby script has File.open(ARGV) input_to_ruby is generated by another command, so I need to create first input_to_ruby...

3. Shell Programming and Scripting

pipe in command

Hello, I try to concatenate a command to execute. Sadly it throws an error. #!/bin/bash cd / cmd="find -name *.txt | awk '{ printf "FILE: "$1; system("less "$1);}' | egrep 'FILE:|$1'" echo "1." $($cmd) echo "2." $("$cmd") echo "3." `$cmd` echo "4." `"$cmd"`1.&3. 'find: paths must...

4. UNIX for Dummies Questions & Answers

is there any way of using rm command on output of pipe

Hi, I am having a list of directories with different login id's. My requirement is that i need to list the directories of my id and need to delete them. So i am using following code ls -ltr � grep userid � rm -rf But this is not working. So is there any way of doing it. Please note...

5. Shell Programming and Scripting

pipe command for array

Hi Folks, very basic question, how to do command piping for an array? suppose i have names as an array, when I write this script: #!/usr/bin/sh date=`date +%y%m%d`; names="a b" for name in ${names} do extract -tz +8 person 'income$|expense$' /home/ricki/$name/$date*.xml | tab -d -cols...

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unix command pipe

I am pretty new to UNIX. My client has a requirement where in a directory we have some files with somewhat similar name like test_XX.txt, test_XY.txt, test_XZ.txt, test_ZZ.txt, test_ZY.txt, test_ZX.txt, test_YY.txt......Out of these files few files have 0 bytes. Is there a way where we can go...

7. UNIX for Dummies Questions & Answers

Pipe in command string

Hi, Can't you have a pipe in a command string ? If I try the following I get errors. Why ? > cmd="ls -lrt | grep xyz" > $cmd |: No such file or directory grep: No such file or directory xyx: No such file or directory Thanks in advance Hench

8. UNIX for Dummies Questions & Answers

How can I use pipe command ?

Hi My friends I have used this command to find files are modified within the past 24 hours and then many files are shown but I want transfer all these files to special directory by using pipe . can any one tell me what is the next step ?

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pipe command

current dir : /home/sales ls -l abc.txt 17th aug bcd .txt 16t oct ------- ------ Total files : 100 if i want to move only those files dated 17 aug into another sub directory /home/sales/texas how do i pipe the result of 'ls' command to a 'mv' command

10. UNIX for Advanced & Expert Users

How to pipe command

Hi All, I want to create a command that executes a text editor with the most recent file in the current current directory. So a good start to achieve this is : ls -lrt | cut -c55- | tail -1 which provides the name of the most recent file in a directory The problem is to pipe the...

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openvt

OPENVT(1)							     Linux 1.x								 OPENVT(1)

NAME

       openvt - start a program on a new virtual terminal (VT).

SYNOPSIS

       openvt [-c vtnumber] [-s] [-u] [-l] [-v] [--] command command_options

DESCRIPTION

       openvt  will  find the first available VT, and run on it the given command with the given command options, standard input, output and error
       are directed to that terminal. The current search path ($PATH) is used to find the requested command. If no command is specified  then  the
       environment variable $SHELL is used.

   OPTIONS
       -c vtnumber
	      Use the given VT number and not the first available. Note you must have write access to the supplied VT for this to work.

       -e     Directly execute the given command, without forking.  This option is meant for use in /etc/inittab.

       -s     Switch to the new VT when starting the command. The VT of the new command will be made the new current VT.

       -u     Figure out the owner of the current VT, and run login as that user.  Suitable to be called by init. Shouldn't be used with -c or -l.

       -l     Make the command a login shell. A - is prepended to the name of the command to be executed.

       -v     Be a bit more verbose.

       -w     wait  for command to complete. If -w and -s are used together then openvt will switch back to the controlling terminal when the com-
	      mand completes.

       --     end of options to openvt.

NOTE

       If openvt is compiled with a POSIX (GNU) getopt() and you wish to set options to the command to be run, then you must  supply  the  end	of
       options -- flag before the command.

EXAMPLES

       openvt can be used to start a shell on the next free VT, by using the command:

       openvt bash

       To start the shell as a login shell, use:

       openvt -l bash

       To get a long listing you must supply the -- separator:

       openvt -- ls -l

HISTORY

       Earlier, openvt was called open.  It was written by Jon Tombs <jon@gtex02.us.es or jon@robots.ox.ac.uk>.  The -w idea is from "sam".

SEE ALSO

       chvt(1), doshell(8), login(1)

19 Jul 1996							       V1.4								 OPENVT(1)

Shell Programming and Scripting