Christopher Hallinan: Embedded Linux Primer: A Practical, Real-World Approach
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- Название:Embedded Linux Primer: A Practical, Real-World Approach
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- Издательство:Prentice Hall
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- Год:2006
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- ISBN:978-0-13-167984-9
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BusyBox has many useful commands. Here is a list of the commands documented in a recent BusyBox snapshot.
| addgroup | Adds a group to the system |
| adduser | Adds a user to the system |
| adjtimex | Reads and optionally sets system timebase parameters |
| ar | Extracts or lists files from an ar archive |
| arping | Pings hosts by ARP requests/replies |
| ash | The ash shell (command interpreter) |
| awk | Pattern-scanning and processing language |
| basename | Strips directory path and suffixes from files |
| bunzip2 | Uncompresses a file (or standard input if no input file specified) |
| bzcat | Uncompresses to stdout |
| cal | Displays a calendar |
| cat | Concatenates file(s) and prints them to stdout |
| chgrp | Changes the group membership of each file |
| chmod | Changes file access permissions |
| chown | Changes the owner and/or group of file(s) |
| chroot | Runs the command with root directory set to new root |
| chvt | Changes the foreground virtual terminal to /dev/ttyN |
| clear | Clears screen |
| cmp | Compares files |
| cp | Copies files |
| cpio | Extracts or lists files from a cpio archive |
| crond | BusyBox's version of cron daemon |
| crontab | Manages crontab control file |
| cut | Prints selected fields from each input file to standard output |
| date | Displays or sets the system time |
| dc | Tiny RPN calculator |
| dd | Copies a file, converting and formatting according to options |
| deallocvt | Deallocates unused virtual terminal /dev/ttyN |
| delgroup | Deletes a group from the system |
| deluser | Deletes a user from the system |
| devfsd | Obsolete daemon for managing devfs permissions and old device name symlinks |
| df | Prints the file system space used and space available |
| dirname | Strips a nondirectory suffix from a filename |
| dmesg | Prints or controls the kernel ring buffer |
| dos2unix | Converts a file from DOS format to UNIX format |
| dpkg | Utility to install, remove, and manage Debian packages |
| dpkg-deb | Performs actions on Debian packages (debs) |
| du | Summarizes disk space used for each file and/or directory |
| dumpkmap | Prints a binary keyboard-translation table to standard output |
| dumpleases | Displays the DHCP leases granted by udhcpd |
| echo | Prints the specified ARGs to stdout |
| env | Prints the current environment or runs a program after setting |
| expr | Prints the value of an expression to standard output |
| false | Returns an exit code of FALSE (1) |
| fbset | Shows and modifies frame buffer settings |
| fdflush | Forces floppy disk drive to detect disk change |
| fdformat | Low-level-formats a floppy disk |
| fdisk | Changes partition table |
| find | Searches for files in a directory hierarchy |
| fold | Wraps input lines in each file |
| free | Displays the amount of free and used system memory |
| freeramdisk | Frees all memory used by the specified ramdisk |
| fsckminix | Performs a consistency check for MINIX file systems |
| ftpget | Retrieves a remote file via FTP |
| ftpput | Stores a local file on a remote machine via FTP |
| getopt | Parses command options |
| getty | Opens a tty, prompts for a login name, and then invokes /bin/login |
| grep | Searches for PATTERN in each file or standard input |
| gunzip | Uncompresses file (or standard input) |
| gzip | Compresses file(s) with maximum compression |
| halt | Halts the system |
| hdparm | Gets/sets hard disk parameters |
| head | Prints first 10 lines of each file to standard output |
| hexdump | Dumps files in user-specified binary, octal, hex, character, or decimal format |
| hostid | Prints a unique 32-bit identifier for the machine |
| hostname | Gets or sets the hostname |
| httpd | Listens for incoming http server requests |
| hwclock | Queries and sets the hardware clock (RTC) |
| id | Prints information for USERNAME or the current user |
| ifconfig | Configures a network interface |
| ifdown | Deconfigures an interface |
| ifup | Configure an interface |
| inetd | Listenss for network connections and launches programs |
| init | BusyBox version of init |
| insmod | Loads the specified kernel modules into the kernel |
| install | Copies files and sets attributes |
| ip | TCP/IP configuration utility |
| ipaddr | Manipulates interface addresses |
| ipcalc | Calculates IP network settings from an IP address |
| iplink | Manipulates interface settings |
| iproute | Displays/sets routing table entries |
| iptunnel | BusyBox iptunnel utility |
| kill | Sends a signal (default is SIGTERM) to the specified process(es) |
| killall | Sends a signal (default is SIGTERM) to the specified process(es) |
| klogd | Kernel logger |
| lash | The BusyBox LAme SHell (command interpreter) |
| last | Shows a listing of the last users who logged into the system |
| length | Prints the length of the specified STRING |
| ln | Creates a link named LINK_NAME or DIRECTORY to the specified TARGET |
| loadfont | Loads a console font from standard input |
| loadkmap | Loads a binary keyboard-translation table from standard input |
| logger | Writes MESSAGE to the system log |
| login | Begins a new session on the system |
| logname | Prints the name of the current user |
| logread | Shows the messages from syslogd |
| losetup | Associates LOOPDEVICE with file |
| ls | Lists directory contents |
| lsmod | Lists the currently loaded kernel modules |
| makedevs | Creates a range of block or character special files |
| md5sum | Prints or checks MD5 checksums |
| mesg | mesg controls write access to your terminal |
| mkdir | Creates directory entries |
| mkfifo | Creates a named pipe (identical to mknod name p) |
| mkfsminix | Makes a MINIX file system |
| mknod | Creates a special file (block, character, or pipe) |
| mkswap | Prepares a disk partition to be used as a swap partition |
| mktemp | Creates a temporary file with its name based on TEMPLATE |
| modprobe | Used for high-level module loading and unloading |
| more | Filter for viewing files one screenful at a time |
| mount | Mounts a file system |
| mt | Controls magnetic tape drive operation |
| mv | Renames and/or moves files |
| nameif | Renames a network interface while in the down state |
| nc | Netcat opens a pipe to IP:port |
| netstat | Netstat displays Linux networking information |
| nslookup | Queries the nameserver for the IP address of the given host |
| od | Dumps files in octal and other formats |
| openvt | Starts a command on a new virtual terminal |
| passwd | Changes a user password |
| patch | BusyBox implementation of patch |
| pidof | Gets PID of named process |
| ping | Sends ICMP ECHO_REQUEST packets to network hosts |
| ping6 | Sends ICMP ECHO_REQUEST packets to network hosts |
| pivot_root | Changes the root file system |
| poweroff | Halts the system and requests that the kernel shut off the power |
| printf | Formats and prints arguments according to user format |
| ps | Reports process status |
| pwd | Prints the full filename of the current working directory |
| rdate | Gets and possibly sets the system date and time from a remote HOST |
| readlink | Displays the value of a symbolic link |
| realpath | Returns the absolute pathnames of a given argument |
| reboot | Reboots the system |
| renice | Changes priority of running processes in allowed priorities range |
| reset | Resets the screen |
| rm | Removes (unlink) file(s) |
| rmdir | Removes directory(ies), if they are empty |
| rmmod | Unloads the specified kernel modules from the kernel |
| route | Edits the kernel's routing tables |
| rpm | Manipulates RPM packages |
| rpm2cpio | Outputs a cpio archive of the rpm file |
| run-parts | Runs a bunch of scripts in a directory |
| rx | Receives a file using the xmodem protocol |
| sed | Busybox Stream Editor implementation |
| seq | Prints a range of numbers to standard output |
| setkeycodes | Sets entries into the kernel's scancode-to-keycode map |
| sha1sum | Prints or checks SHA1 checksums |
| sleep | Delay for specified amount of time |
| sort | Sorts lines of text in the specified files |
| start-stop-daemon | Program to start and stop services |
| strings | Displays printable strings in a binary file |
| stty | Displays and modifies terminal settings |
| su | Changes user ID or become root |
| sulogin | Single user login |
| swapoff | Disables virtual memory page swapping |
| swapon | Enables virtual memory page swapping |
| sync | Writes all buffered file system blocks to disk |
| sysctl | Configures kernel parameters at runtime |
| syslogd | Linux system and kernel-logging utility |
| tail | Prints last 10 lines of each file to standard output |
| tar | Creates, extracts, or lists files from a tar file |
| tee | Copies standard input to each file and also to standard output |
| telnet | BusyBox Telnet client implementation |
| telnetd | BusyBox Telnet server implementation |
| test | Checks file types and compares values, returning an exit |
| tftp | Transfers a file using TFTP protocol |
| time | Measures time used by a program |
| top | Provides a view of processor activity in real time |
| touch | Updates the last-modified date on the given FILE[s] |
| tr | Translates, squeezes, and/or deletes characters |
| traceroute | Traces the route IP packets follow |
| true | Returns an exit code of trUE (0) |
| tty | Prints the filename of the terminal connected to standard input |
| udhcpc | BusyBox DHCP client implementation |
| udhcpd | BusyBox DHCP server implementation |
| umount | Unmount file systems |
| uname | Prints certain system information |
| uncompress | Uncompresses Z file(s) |
| uniq | Discards all but one of successive identical lines from INPUT |
| unix2dos | Converts file from UNIX format to DOS format |
| unzip | Extracts files from ZIP archives |
| uptime | Displays the time since the last boot |
| usleep | Pauses for n microseconds |
| uudecode | Uudecodes a file that is uuencoded |
| uuencode | Uuencodes a file |
| vconfig | Lets you create and remove virtual Ethernet devices |
| vi | BusyBox vi editor |
| vlock | Locks a virtual terminal and requires a password to unlock it |
| watch | Executes a program periodically |
| watchdog | Periodically writes to a specified watchdog device |
| wc | Prints line, word, and byte counts for each file |
| wget | Retrieves files via HTTP or FTP |
| which | Locates a command on the current path |
| who | Prints the current usernames and related information |
| whoami | Prints the username associated with the current effective user ID |
| xargs | Executes a command on every item given by standard input |
| yes | Repeatedly outputs a line with all specified STRING(s), or y |
| zcat | Uncompresses to stdout |
Appendix D. SDRAM Interface Considerations
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