difference between source, exec and ./script Post: 1679

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Difference between xargs and exec

Hi, I have tried both the options in small dummy scripts, but somehow i can't differentiate between the two. find . -name H* -exec ls -l {} \; find . -name H* | xargs ls -l Both work the ditto way. Any help is appreciated.

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using -exec in a script

I am using a third party job management program called Autosys. the command to load a jil into the autosys database is jil < somefilename.jil I have a directory and it in are a lot of jils. rather than type jil < somefilename.jil for every file I would like to script something do do it. if cd...

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Hi, I discovered the following single-line script works very well to cp a large number of files from a source directory to a destination directory while avoiding the "argument list too large" error: # cpmany - copy large number of files # Takes two parameters - source dir, destination dir...

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Hi, Gurus, my script code as following: #!/usr/bin/sh mkdir dir1 result=`echo $?` if ; then echo "completed" else echo "wrong" fi When I execute it with command sh filename. , it executed successfully. but, when I execute it with command . filename it throw out error: -bash:ELF :...

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I have the following bash script lines in a file named test.sh. #!/bin/bash # # Write Date to cron.log # echo "Begin SSI Load $(date +%d%b%y_%T)" # # Get the latest rates file for processing. # d=$(ls -tr /rms/data/ssi | grep -v "processed" | tail -n 1) filename=$d export filename...

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Difference b/w xargs and "-exec" in Find

Hi, What is the difference between the following commands find . -type f -exec grep 'abc' {} \; and find . -type f | xargs grep 'abc' Appreciate your help.

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Guru's, I want to make a use of "exec" command in my script and want to check return code of executing script, but as you know exec command will terminate current processID and comeout and will trigger new one, i am unable to check return code of script and not able to run a scrpit after exec. ...

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Difference: 'source file.sh' or './file.sh'

Dear all, I would like to know the difference in executing the shell script both ways? a.) source file.sh b.) ./file.sh I need to initialize some setup which is part of the file.sh. I realized that when I do the source file.sh the setup is all initlaized well. However, with the ./file.sh...

LEARN ABOUT BSD

makedev

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

NAME

       makedev - make system special files

SYNOPSIS

       /dev/MAKEDEV device...

DESCRIPTION

       MAKEDEV is a shell script normally used to install special files.  It resides in the /dev directory, as this is the normal location of spe-
       cial files.  Arguments to MAKEDEV are usually of the form device-name?  where device-name is one of the supported devices listed in section
       4  of  the  manual and ``?'' is a logical unit number (0-9).  A few special arguments create assorted collections of devices and are listed
       below.

       std    Create the standard devices for the system; e.g. /dev/console, /dev/tty.	The VAX-11/780 console	floppy	device,  /dev/floppy,  and
	      VAX-11/750 and VAX-11/730 console cassette device(s), /dev/tu?, are also created with this entry.

       local  Create  those  devices specific to the local site.  This request causes the shell file /dev/MAKEDEV.local to be executed.  Site spe-
	      cific commands, such as those used to setup dialup lines as ``ttyd?'' should be included in this file.

       Since all devices are created using mknod(8), this shell script is useful only to the super-user.

DIAGNOSTICS

       Either self-explanatory, or generated by one of the programs called from the script.  Use ``sh -x MAKEDEV'' in case of trouble.

SEE ALSO

       intro(4), config(8), mknod(8)

4.2 Berkeley Distribution					   May 19, 1986 							MAKEDEV(8)

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