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Whatis
Mans
--help
Pinfo
Sosreport
/usr/share/doc
To read a document using the man command
[[email protected] xx]# man Mans
1 executable programs or shell commands user commands (executable commands and shell programs)
2 system calls (functions provided by the kernel) systems call (kernel routines called from user space)
3 Librarycalls (functions within program libraries) library functions (provided by programs)
4 special files (usually found In/dev) special documents (such as device files)
5 Files formats and conventions eg/etc/passwd file format (user many profiles and structures)
6 games
7 miscellaneous (including macro packages and conventions), E.g.man (7), Groff (7)
conventions, standards and other (protocols, file systems)
8 system administration commands (usually only for root) systems administration and privileged commands (maintenance tasks)
9 Kernel Routines [Non standard]linux kernel API (kernel call)
SPACEBAR to scroll forward (down) one screen
PageDown scroll forward (down) one screen
PageUp Scroll Backward (UP) one screen
DOWN ARROW key to scroll forward (down) one line
Up ARROW key to scroll backward (UP) one line
D roll Forward (down) half the screen
U scroll Backward (UP) half a screen
/string searching forward string in the man page
N Search Down
N Search Up
G Go to the beginning of the man page
G go to the end of the man page
Q Exit Man
Keyword search
Man–k
[Email protected] ~]$ man-k passwd
CHPASSWD (8)-Batch update password
GPASSWD (1)-Administrator/etc/group and/etc/gshadow
Fgetpwent_r (3)-Get passwd file entry reentrantly
Getpwent_r (3)-Get passwd file entry reentrantly
GRUB2-MKPASSWD-PBKDF2 (1)-Generate aPBKDF2 password hash.
LPASSWD (1)-Change group or user password
LPPASSWD (1)-Add, change, or delete digestpasswords.
Pam_localuser (8)-Require users to be listed IN/ETC/PASSWD
passwd (1)-Update user ' s Authenticationtokens
SSLPASSWD (1SSL)-Compute password hashes
passwd (5)-Password file
Passwd2des (3)-RFS password encryption
Pwhistory_helper (8)-helper binary thattransfers password hashes from pass ...
SASLPASSWD2 (8)-Set a user ' s SASL password
SMBPASSWD (5)-The Samba encrypted password file
USERPASSWD (1)-A graphical tool to allow users tochange their passwo ...
VNCPASSWD (1)-Change the VNC password
Create a formatted output file for passwd manpage
[Email protected] xx]# RM-RF passwd.ps
[Email protected] xx]# man-t passwd>passwd.ps
[[email protected] xx]# ls
Passwd.ps
[[Email protected] xx]# file passwd.ps
Passwd.ps:PostScript Document Textconforming DSC level 3.0
[email protected] doc]$ Firefox file:///usr/share/doc
3 getting help in Red Hat Enterprise Linux