apropos - search the manual page names and descriptions
A very Usefull command to find Out the Manual pages to particular task.. Means we can find.
how Many ways To do A task in Linux.. This is efficiency of Linux OS. and this command will help Us to find the all ways to do a Task. for example this:------
[root@singh ~]# apropos network
Socket (3pm) - networking constants and support functions
aseqnet (1) - ALSA sequencer connectors over network
avahi-autoipd (8) - IPv4LL network address configuration daemon
bssh (1) - Browse for SSH/VNC servers on the local network
bvnc (1) - Browse for SSH/VNC servers on the local network
byteorder (3) - convert values between host and network byte order
ctstat (8) - unified linux network statistics
dhclient-script (8) - DHCP client network configuration script
dsktune (1) - reports memory, network, and file system tuning settin...
dumpcap (1) - Dump network traffic
endhostent (3) - get network host entry
endhostent (3p) - network host database functions
endnetent (3) - get network entry
endnetent (3p) - network database functions
endnetgrent (3) - handle network group entries
endprotoent (3p) - network protocol database functions
endservent (3p) - network services database functions
ethtool (8) - query or control network driver and hardware settings
freeaddrinfo (3) - network address and service translation
freehostent (3) - get network hostnames and addresses
gai_cancel (3) - asynchronous network address and service translation
gai_error (3) - asynchronous network address and service translation
gai_strerror (3) - network address and service translation
gai_suspend (3) - asynchronous network address and service translation
getaddrinfo (3) - network address and service translation
getaddrinfo_a (3) - asynchronous network address and service translation
gethostbyaddr (3) - get network host entry
gethostbyaddr (3p) - network host database functions
gethostbyaddr_r (3) - get network host entry
gethostbyname (3) - get network host entry
gethostbyname (3p) - network host database functions
gethostbyname2 (3) - get network host entry
gethostbyname2_r (3) - get network host entry
gethostbyname_r (3) - get network host entry
gethostent (3) - get network host entry
gethostent (3p) - network host database functions
gethostent_r (3) - get network host entry
getipnodebyaddr (3) - get network hostnames and addresses
getipnodebyname (3) - get network hostnames and addresses
getnetbyaddr (3) - get network entry
getnetbyaddr (3p) - network database functions
getnetbyaddr_r (3) - get network entry (reentrant)
getnetbyname (3) - get network entry
getnetbyname (3p) - network database functions
getnetbyname_r (3) - get network entry (reentrant)
getnetent (3) - get network entry
getnetent (3p) - network database functions
getnetent_r (3) - get network entry (reentrant)
getnetgrent (3) - handle network group entries
getnetgrent_r (3) - handle network group entries
getprotobyname (3p) - network protocol database functions
getprotobynumber (3p) - network protocol database functions
getprotoent (3p) - network protocol database functions
getservbyname (3p) - network services database functions
getservbyport (3p) - network services database functions
getservent (3p) - network services database functions
h_errno (3) - get network host entry
h_errno (3p) - error return value for network database operations
herror (3) - get network host entry
hstrerror (3) - get network host entry
htonl (3) - convert values between host and network byte order
htonl (3p) - convert values between host and network byte order
htons (3) - convert values between host and network byte order
htons (3p) - convert values between host and network byte order
if_indextoname (3p) - map a network interface index to its corresponding name
if_nameindex (3p) - return all network interface names and indexes
if_nametoindex (3p) - map a network interface name to its corresponding index
ifconfig (8) - configure a network interface
ifdown (8) - bring a network interface up
ifenslave (8) - Attach and detach slave network devices to a bonding d...
ifrename (8) - rename network interfaces based on various static crit...
iftab (5) - static information about the network interfaces
ifup (8) - bring a network interface up
inet_network (3) - Internet address manipulation routines
innetgr (3) - handle network group entries
IO::Async::Listener (3pm) - listen on network sockets for incoming connections
ip-link (8) - network device configuration
ip-netns (8) - process network namespace management
iwconfig (8) - configure a wireless network interface
iwgetid (8) - Report ESSID, NWID or AP/Cell Address of wireless network
iwpriv (8) - configure optionals (private) parameters of a wireless...
libpng (3) - Portable Network Graphics (PNG) Reference Library 1.5.10
libpngpf (3) - Portable Network Graphics (PNG) Reference Library 1.5....
lnstat (8) - unified linux network statistics
lwres_endhostent (3) - lightweight resolver get network host entry
lwres_endhostent_r (3) - lightweight resolver get network host entry
lwres_gethostbyaddr (3) - lightweight resolver get network host entry
lwres_gethostbyaddr_r (3) - lightweight resolver get network host entry
lwres_gethostbyname (3) - lightweight resolver get network host entry
lwres_gethostbyname2 (3) - lightweight resolver get network host entry
lwres_gethostbyname_r (3) - lightweight resolver get network host entry
lwres_gethostent (3) - lightweight resolver get network host entry
lwres_gethostent_r (3) - lightweight resolver get network host entry
lwres_sethostent (3) - lightweight resolver get network host entry
lwres_sethostent_r (3) - lightweight resolver get network host entry
mii-diag (8) - Network adapter control and monitoring
mount.nfs (8) - mount a Network File System
mtr (8) - a network diagnostic tool
nameif (8) - name network interfaces based on MAC addresses
Net::Cmd (3pm) - Network Command class (as used by FTP, SMTP etc)
Net::Time (3pm) - time and daytime network client interface
netdb.h (0p) - definitions for network database operations
netdevice (7) - Low level access to Linux network devices
netreport (1) - request notification of network interface changes
netstat (8) - Print network connections, routing tables, interface s...
NetworkManager (8) - network management daemon
NetworkManager.conf (5) - NetworkManager configuration file
NetworkManager_selinux (8) - Security Enhanced Linux Policy for the NetworkMa...
networks (5) - network name information
nm-online (1) - ask NetworkManager whether the network is connected
nm-system-settings.conf (5) - Deprecated NetworkManager configuration file
nm-tool (1) - utility to report NetworkManager state and devices
nmap (1) - Network exploration tool and security / port scanner
nmcli (1) - command-line tool for controlling NetworkManager
nping (1) - Network packet generation tool / ping utility
nstat (8) - network statistics tools.
ntohl (3) - convert values between host and network byte order
ntohl (3p) - convert values between host and network byte order
ntohs (3) - convert values between host and network byte order
ntohs (3p) - convert values between host and network byte order
perlfaq9 (1) - Networking
pifconfig (8) - display information about a network interface
pilot-install-netsync (1) - reads or sets the Network Preferences information...
pilot-nredir (1) - Accept connection and redirect via Network Hotsync Pro...
ping (8) - send ICMP ECHO_REQUEST to network hosts
ping6 (8) - send ICMP ECHO_REQUEST to network hosts
png (5) - Portable Network Graphics (PNG) format
POE (3pm) - portable multitasking and networking framework for any...
qemu-nbd (8) - QEMU Disk Network Block Device Server
rdate (1) - get the time via the network
rdisc (8) - network router discovery daemon
rtacct (8) - network statistics tools.
rtstat (8) - unified linux network statistics
sane-net (5) - SANE network backend
saned (8) - SANE network daemon
services (5) - Internet network services list
sethostent (3) - get network host entry
sethostent (3p) - network host database functions
setnetent (3) - get network entry
setnetent (3p) - network database functions
setnetgrent (3) - handle network group entries
setprotoent (3p) - network protocol database functions
setservent (3p) - network services database functions
slattach (8) - attach a network interface to a serial line
smbtree (1) - A text based smb network browser
socket (n) - Open a TCP network connection
tc-netem (8) - Network Emulator
tcpbridge (1) - Bridge network traffic across two interfaces
tcpdump (8) - dump traffic on a network
tcpreplay (1) - Replay network traffic stored in pcap files
tcpreplay-edit (1) - Replay network traffic stored in pcap files
tcptraceroute (8) - print the route packets trace to network host
tcptrack (1) - Monitor TCP connections on the network
tracepath (8) - traces path to a network host discovering MTU along th...
tracepath6 (8) - traces path to a network host discovering MTU along th...
traceroute (8) - print the route packets trace to network host
traceroute6 (8) - print the route packets trace to network host
tshark (1) - Dump and analyze network traffic
umount.nfs (8) - unmount a Network File System
usernetctl (8) - allow a user to manipulate a network interface if perm...
wget (1) - The non-interactive network downloader.
wireshark (1) - Interactively dump and analyze network traffic
[root@singh ~]#
A very Usefull command to find Out the Manual pages to particular task.. Means we can find.
how Many ways To do A task in Linux.. This is efficiency of Linux OS. and this command will help Us to find the all ways to do a Task. for example this:------
[root@singh ~]# apropos network
Socket (3pm) - networking constants and support functions
aseqnet (1) - ALSA sequencer connectors over network
avahi-autoipd (8) - IPv4LL network address configuration daemon
bssh (1) - Browse for SSH/VNC servers on the local network
bvnc (1) - Browse for SSH/VNC servers on the local network
byteorder (3) - convert values between host and network byte order
ctstat (8) - unified linux network statistics
dhclient-script (8) - DHCP client network configuration script
dsktune (1) - reports memory, network, and file system tuning settin...
dumpcap (1) - Dump network traffic
endhostent (3) - get network host entry
endhostent (3p) - network host database functions
endnetent (3) - get network entry
endnetent (3p) - network database functions
endnetgrent (3) - handle network group entries
endprotoent (3p) - network protocol database functions
endservent (3p) - network services database functions
ethtool (8) - query or control network driver and hardware settings
freeaddrinfo (3) - network address and service translation
freehostent (3) - get network hostnames and addresses
gai_cancel (3) - asynchronous network address and service translation
gai_error (3) - asynchronous network address and service translation
gai_strerror (3) - network address and service translation
gai_suspend (3) - asynchronous network address and service translation
getaddrinfo (3) - network address and service translation
getaddrinfo_a (3) - asynchronous network address and service translation
gethostbyaddr (3) - get network host entry
gethostbyaddr (3p) - network host database functions
gethostbyaddr_r (3) - get network host entry
gethostbyname (3) - get network host entry
gethostbyname (3p) - network host database functions
gethostbyname2 (3) - get network host entry
gethostbyname2_r (3) - get network host entry
gethostbyname_r (3) - get network host entry
gethostent (3) - get network host entry
gethostent (3p) - network host database functions
gethostent_r (3) - get network host entry
getipnodebyaddr (3) - get network hostnames and addresses
getipnodebyname (3) - get network hostnames and addresses
getnetbyaddr (3) - get network entry
getnetbyaddr (3p) - network database functions
getnetbyaddr_r (3) - get network entry (reentrant)
getnetbyname (3) - get network entry
getnetbyname (3p) - network database functions
getnetbyname_r (3) - get network entry (reentrant)
getnetent (3) - get network entry
getnetent (3p) - network database functions
getnetent_r (3) - get network entry (reentrant)
getnetgrent (3) - handle network group entries
getnetgrent_r (3) - handle network group entries
getprotobyname (3p) - network protocol database functions
getprotobynumber (3p) - network protocol database functions
getprotoent (3p) - network protocol database functions
getservbyname (3p) - network services database functions
getservbyport (3p) - network services database functions
getservent (3p) - network services database functions
h_errno (3) - get network host entry
h_errno (3p) - error return value for network database operations
herror (3) - get network host entry
hstrerror (3) - get network host entry
htonl (3) - convert values between host and network byte order
htonl (3p) - convert values between host and network byte order
htons (3) - convert values between host and network byte order
htons (3p) - convert values between host and network byte order
if_indextoname (3p) - map a network interface index to its corresponding name
if_nameindex (3p) - return all network interface names and indexes
if_nametoindex (3p) - map a network interface name to its corresponding index
ifconfig (8) - configure a network interface
ifdown (8) - bring a network interface up
ifenslave (8) - Attach and detach slave network devices to a bonding d...
ifrename (8) - rename network interfaces based on various static crit...
iftab (5) - static information about the network interfaces
ifup (8) - bring a network interface up
inet_network (3) - Internet address manipulation routines
innetgr (3) - handle network group entries
IO::Async::Listener (3pm) - listen on network sockets for incoming connections
ip-link (8) - network device configuration
ip-netns (8) - process network namespace management
iwconfig (8) - configure a wireless network interface
iwgetid (8) - Report ESSID, NWID or AP/Cell Address of wireless network
iwpriv (8) - configure optionals (private) parameters of a wireless...
libpng (3) - Portable Network Graphics (PNG) Reference Library 1.5.10
libpngpf (3) - Portable Network Graphics (PNG) Reference Library 1.5....
lnstat (8) - unified linux network statistics
lwres_endhostent (3) - lightweight resolver get network host entry
lwres_endhostent_r (3) - lightweight resolver get network host entry
lwres_gethostbyaddr (3) - lightweight resolver get network host entry
lwres_gethostbyaddr_r (3) - lightweight resolver get network host entry
lwres_gethostbyname (3) - lightweight resolver get network host entry
lwres_gethostbyname2 (3) - lightweight resolver get network host entry
lwres_gethostbyname_r (3) - lightweight resolver get network host entry
lwres_gethostent (3) - lightweight resolver get network host entry
lwres_gethostent_r (3) - lightweight resolver get network host entry
lwres_sethostent (3) - lightweight resolver get network host entry
lwres_sethostent_r (3) - lightweight resolver get network host entry
mii-diag (8) - Network adapter control and monitoring
mount.nfs (8) - mount a Network File System
mtr (8) - a network diagnostic tool
nameif (8) - name network interfaces based on MAC addresses
Net::Cmd (3pm) - Network Command class (as used by FTP, SMTP etc)
Net::Time (3pm) - time and daytime network client interface
netdb.h (0p) - definitions for network database operations
netdevice (7) - Low level access to Linux network devices
netreport (1) - request notification of network interface changes
netstat (8) - Print network connections, routing tables, interface s...
NetworkManager (8) - network management daemon
NetworkManager.conf (5) - NetworkManager configuration file
NetworkManager_selinux (8) - Security Enhanced Linux Policy for the NetworkMa...
networks (5) - network name information
nm-online (1) - ask NetworkManager whether the network is connected
nm-system-settings.conf (5) - Deprecated NetworkManager configuration file
nm-tool (1) - utility to report NetworkManager state and devices
nmap (1) - Network exploration tool and security / port scanner
nmcli (1) - command-line tool for controlling NetworkManager
nping (1) - Network packet generation tool / ping utility
nstat (8) - network statistics tools.
ntohl (3) - convert values between host and network byte order
ntohl (3p) - convert values between host and network byte order
ntohs (3) - convert values between host and network byte order
ntohs (3p) - convert values between host and network byte order
perlfaq9 (1) - Networking
pifconfig (8) - display information about a network interface
pilot-install-netsync (1) - reads or sets the Network Preferences information...
pilot-nredir (1) - Accept connection and redirect via Network Hotsync Pro...
ping (8) - send ICMP ECHO_REQUEST to network hosts
ping6 (8) - send ICMP ECHO_REQUEST to network hosts
png (5) - Portable Network Graphics (PNG) format
POE (3pm) - portable multitasking and networking framework for any...
qemu-nbd (8) - QEMU Disk Network Block Device Server
rdate (1) - get the time via the network
rdisc (8) - network router discovery daemon
rtacct (8) - network statistics tools.
rtstat (8) - unified linux network statistics
sane-net (5) - SANE network backend
saned (8) - SANE network daemon
services (5) - Internet network services list
sethostent (3) - get network host entry
sethostent (3p) - network host database functions
setnetent (3) - get network entry
setnetent (3p) - network database functions
setnetgrent (3) - handle network group entries
setprotoent (3p) - network protocol database functions
setservent (3p) - network services database functions
slattach (8) - attach a network interface to a serial line
smbtree (1) - A text based smb network browser
socket (n) - Open a TCP network connection
tc-netem (8) - Network Emulator
tcpbridge (1) - Bridge network traffic across two interfaces
tcpdump (8) - dump traffic on a network
tcpreplay (1) - Replay network traffic stored in pcap files
tcpreplay-edit (1) - Replay network traffic stored in pcap files
tcptraceroute (8) - print the route packets trace to network host
tcptrack (1) - Monitor TCP connections on the network
tracepath (8) - traces path to a network host discovering MTU along th...
tracepath6 (8) - traces path to a network host discovering MTU along th...
traceroute (8) - print the route packets trace to network host
traceroute6 (8) - print the route packets trace to network host
tshark (1) - Dump and analyze network traffic
umount.nfs (8) - unmount a Network File System
usernetctl (8) - allow a user to manipulate a network interface if perm...
wget (1) - The non-interactive network downloader.
wireshark (1) - Interactively dump and analyze network traffic
[root@singh ~]#
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