Moxa Technologies EM-1240-LX System Commands, Busybox µClinux normal command utility collection

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System Commands

busybox: µClinux normal command utility collection

File manager

cp

copy file

ls

list file

ln

make symbolic link file

mount

mount and check file system

rm

delete file

chmod

change file owner & group & user

chown

change file owner

chgrp

change file group

sync

sync file system; save system file buffer to hardware

mv

move file

pwd

display active file directly

df

list active file system space

du

estimate file space usage

mkdir

make new directory

rmdir

delete directory

head

print the first 10 lines of each file to standard output

tail

print the last 10 lines of each file to standard output

touch

update the access and modification times of each file to the current time

Editor

vi

text editor

cat

dump file context

grep

print lines matching a pattern

cut

remove sections from each line of files

find

search for files in a directory hierarchy

more

dump file by one page

test

test if file exists or not

echo

echo string

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Contents First Edition, November EM-1240-LX User’s ManualCopyright Notice Table of Contents Chapter EM-1240-LX Device API Introduction EM-1240-LX Package ChecklistProduct Features OverviewHardware Specifications Product SpecificationsSoftware Specifications EM-1240 Development Kit Embedded Module Hardware Block Diagram AppearanceEM-1240 Embedded Module EM-1240 Development Kit Dimensions LED Indicators Installing the EM-1240-LXWiring Requirements Connecting the Power Connecting Data Transmission CablesGrounding the EM-1240-LX Connecting to a Serial Device Connecting to the NetworkSerial Console Port Reset ButtonInternal SD Socket Additional FunctionsReal-time Clock Getting Started Connecting the EM-1240-LX to a PC Powering on the EM-1240-LXConsole Port 192.168.4.127 255.255.255.0 Default IP Address Default NetmaskTelnet 192.168.3.127 255.255.255.0Configuring the Ethernet Interface Dhcpcd -p -a eth0 & dhcpcd -p -a eth1 Ifconfig eth0Installing a Secure Digital SD Memory Card #mount -t iso9660 /dev/cdrom /mnt/cdrom Installing the EM-1240-LX Tool ChainDeveloping Your Applications StepEM-1240-LX User’s Manual PATH=/usr/local/arm-elf/bin$PATH Compiling Hello.c#make Uploading Hello to the EM-1240-LX# chmod 755 hello #./hello Running Hello on the EM-1240-LXCflags = Make File Example CodeSoftware Package EM-1240-LX Software Architecture Journaling Flash File System JFFS2 Flash Context Flash Address Size Access controlAdditional information about JFFS2 is available at Bin Dev EM-1240-LX Software PackagePtyp0 Ppp Pio Rtc Ram1 Ram0 Null Kmem Mem Cua0 Console Tty ‰ Iptables ‰ NAT Configuring the EM-1240-LXEnabling and Disabling Daemons Example default enableAdding a Web Default Home Page addressLocal Host Packets Usage Define policy rules, and Append or delete rulesExamples Define policy for chain rules NAT Example Enabling NAT at BootupDial-in Service Configuring Dial-in/Dial-out ServiceConfiguring PPPoE Dial-out ServiceDynamic Driver Module Load/Unload How to Mount a Remote NFS ServerCd ramdisk Ramdiskupkernel em1240-1.x.bin /ramdiskrebootUpgrading the Kernel UpramdiskUpramdisk Cd ramdisk Upgrading the Root File System & User DirectoryRamdiskbackupfs /ramdisk/usrdisk-backup User Directory Backup-EM-1240-LX to PCChecking the Kernel and Root File System Versions Loading Factory DefaultsMirroring the Application Program and Configuration Autostarting User Applications on BootupCat /etc/version FsversionEM-1240-LX Device API Buzzer RTC Real-time ClockUart Interface UC Finder Windows UC Finder EM-1240-LX User’s Manual UC Finder EM-1240-LX User’s Manual UC Finder Linux UC Finder Editor System CommandsBusybox µClinux normal command utility collection File managerMoxa Special Utilities NetworkProcess OtherSnmp Agent with MIB II & RS-232 Like Group Ip MIB Tcp MIB Udp MIB Snmp Agent with MIB II & RS-232 Like GroupRFC1317 RS-232 like group supported variables Rs232 MIB Snmp MIBEM-1240-LX FAQ Service Information Following services are provided Moxa Internet ServicesMoxa Product † EM-1240-LX Serial Number Problem Report FormProduct Return Procedure