help with !(tail -2) command.. using pipes Post: 62533

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PIPEs and Named PIPEs (FIFO) Buffer size

Hello! How I can increase or decrease predefined pipe buffer size? System FreeBSD 4.9 and RedHat Linux 9.0 Thanks!

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tail command

Hi , I have found a interesting thing about tail command: when I tried to use 'tail -1 *' to look at every file with the current derectory, I only got one line of result of one file. But if I use 'head -1 *', I would get multiple lines. Is there a way to do get multiple lines with 'tail -1 *'...

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I was wondering how can I do this I have file myfile.txt wc -l is: 5 000 000 I have to remove first 1 000 000 lines from header.. I tryed with tail -4000000 myfile.txt>newfile.txt but it does not work... any help??

4. Shell Programming and Scripting

Multiple pipes toward a single awk command

Hello, I would like to pipe two variables into awk, but I don't know how to do. Each variable, "a" and "b", are in fact a list of data. They are not files. So to get awk to work with it I am using: echo $a | awk 'FNR==NR{print $1}FNR!=NR{print $4}' The above works, but when I am...

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Help with tail command

Hi All, My query seems to be silly but Iam unable to find where the exact problem lies. I have a script to unzip set of files here is the script #!/bin/ksh Count=`cat /home/gaddamja/Tempfile | wc -l` while do Filename=`cat /home/gaddamja/Tempfile |tail -$Count | head -1` cd...

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Using pipes in a find command

How are pipes used inside a find -exec clause? I want to traverse a directory tree and find all of the shell scripts, and then based on that I need to perfrom further processing. So I have something like find . -name \* -exec "file {} \| grep 'script' > /dev/null" \; -ls with -ls as a simple...

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Hi, In my home directory, there are so many files. i tried to get the lastly created file by following command. file=`ls -lrt MXOfiles* | tail -1` As there are so many files, it displays "$ : 0403-027 The parameter list is too long." Can someone tell me how can i get the recent file...

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Hi does anyone know how to create a file using the tail command? My book has this file I need to create and it says to use the tail command and that it is possible but I have no idea. Thanks.

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Hi Team, Can anyone help me here: I have to access server logs via putty and these logs file is a trailing file (continously updating) with ERROR and WARNINGS... I need to know if I can pull this trailing file to a local drive so that I can do some higlighting on some keywords through Notepad...

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Limit on number of pipes after long-running command?

I'm trying to create a minimal, crude keylogger for X using only a shell script. I was quickly stumped: Why do these two commands entered in a terminal emulator produce output when I type... $ xinput test 6 | grep press $ xinput test 6 | awk '{print $3}' ...but this command produces no...

LEARN ABOUT MINIX

make

MAKE(1) 						      General Commands Manual							   MAKE(1)

NAME

       make - a program for maintaining large programs

SYNOPSIS

       make [-f file] [-iknpqrst] [option] ... [target]

OPTIONS

       -f     Use file as the makefile

       -i     Ignore status returned by commands

       -k     On error, skip to next command

       -n     Report, but do not execute

       -p     Print macros and targets

       -q     Question up-to-dateness of target

       -r     Rule inhibit; do not use default rules

       -s     Silent mode

       -t     Touch files instead of making them

EXAMPLES

       make kernel	   # Make kernel up to date

       make -n -f mfile    # Tell what needs to be done

DESCRIPTION

       Make  is  a program that is normally used for developing large programs consisting of multiple files.  It keeps track of which object files
       depend on which source and header files.  When called, it does the minimum amount of recompilation to bring the target file up to date.

       The file dependencies are expected in makefile or Makefile , unless another file is specified with -f.  Make has some default  rules  built
       in, for example, it knows how to make .s files from .c files.  Here is a sample makefile .

	 d=/user/ast		     # d is a macro
	 program:		     head.s tail.s# program depends on these
		 cc -o program head.s tail.s# tells how to make program
		 echo Program done.  # announce completion
	 head.s: $d/def.h head.c     # head.s depends on these
	 tail.s: $d/var.h tail.c     # tail.s depends on these

       A  complete  description of make would require too much space here.  Many books on UNIX discuss make .  Study the numerous Makefiles in the
       MINIX source tree for examples.

SEE ALSO

       cc(1).

																	   MAKE(1)

10 More Discussions You Might Find Interesting

1. Filesystems, Disks and Memory

PIPEs and Named PIPEs (FIFO) Buffer size

Discussion started by: Jus

2. Shell Programming and Scripting

tail command

Discussion started by: whatisthis

3. Shell Programming and Scripting

tail command..

Discussion started by: amon

4. Shell Programming and Scripting

Multiple pipes toward a single awk command

Discussion started by: jolecanard