Interpret each keyword as a regular expression. This is the default behavior. Each keyword will be matched against the page names and the descriptions independently. It can match any part of either. The match is not limited to word boundaries.
-w, --wildcard
Interpret each keyword as a pattern containing shell-style wildcards. Each keyword will be matched against the page names and the descriptions independently. If --exact is also used, a match will only be found if an expanded keyword matches an entire description or page name. Otherwise, the keyword is also allowed to match on word boundaries in the description.
-e, --exact
Each keyword will be exactly matched against the page names and the descriptions.
-a, --and
Only display items that match all the supplied keywords. The default is to display items that match any keyword.
-l, --long
Do not trim output to the terminal width. Normally, output will be truncated to the terminal width to avoid ugly results from poorly-written NAME sections.
-s list, --sections list, --section list
Search only the given manual sections. The list is a colon- or comma-separated list of sections. If an entry in list is a simple section, for example "3", then the displayed list of descriptions will include pages in sections "3", "3perl", "3x", and so on; while if an entry in list has an extension, for example "3perl", then the list will only include pages in that exact part of the manual section.
-m system[,...], --systems=system[,...]
If this system has access to other operating system's manual page descriptions, they can be searched using this option. For example, to search the manual page descriptions of an operating system called "NewOS", use the option -m NewOS. The system specified can be a combination of comma-delimited operating system names. (To include a search of the native operating system's whatis descriptions, include the system name man in the argument string. This option will override the $SYSTEM environment variable).
-M path, --manpath=path
Specify an alternate set of colon-delimited manual page hierarchies to search. By default, apropos uses the $MANPATH environment variable, unless it is empty or unset, in which case it will determine an appropriate "manpath" based on your $PATH environment variable. This option overrides the contents of $MANPATH.
-L locale, --locale=locale
apropos will normally determine your current locale by a call to the C function setlocale which interrogates various environment variables, possibly including $LC_MESSAGES and $LANG. To temporarily override the determined value, use this option to supply a locale string directly to apropos. Note that it will not take effect until the search for pages actually begins. Output such as the help message will always be displayed in the initially determined locale.
-C file, --config-file=file
Use this user configuration file rather than the default of ~/.manpath.
If $SYSTEM is set, it will have the same effect as if it had been specified as the argument to the -m option.
MANPATH
If $MANPATH is set, its value is interpreted as the colon-delimited manual page hierarchy search path to use.
MANWIDTH
If $MANWIDTH is set, its value is used as the terminal width (see the --long option). If it is not set, the terminal width will be calculated using an ioctl if available, the value of $COLUMNS, or falling back to 80 characters if all else fails.
POSIXLY_CORRECT
If $POSIXLY_CORRECT is set, even to a null value, the default apropos search will be as an extended regex (-r). On newer systems, this is often already the default behavior.
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apropos 示例
apropos find
在頁面名稱或描述中顯示所有帶有“查找”字樣的手工條目。
輸出如下:
aa_find_mountpoint (2) - find where the apparmor interface filesystem is mounted
chkdupexe (1) - find duplicate executables
ffs (3) - find first bit set in a word
ffsl (3) - find first bit set in a word
ffsll (3) - find first bit set in a word
find (1) - search for files in a directory hierarchy
find2perl (1) - translate find command lines to Perl code
findaffix (1) - Interactive spelling checking
findfs (8) - find a filesystem by label or UUID
findmnt (8) - find a filesystem
findsmb (1) - list info about machines that respond to SMB name quer...
glob (3) - find pathnames matching a pattern, free memory from gl...
globfree (3) - find pathnames matching a pattern, free memory from gl...
ippfind (1) - find internet printing protocol printers
lfind (3) - linear search of an array
locate (1) - find files by name
memdiskfind (1) - utility to search for a MEMDISK instance
mlocate (1) - find files by name
mysql_find_rows (1) - extract SQL statements from files
oldfind (1) - search for files in a directory hierarchy
pidof (8) - find the process ID of a running program.
texdoc (1) - find & view documentation in TeX Live
tfind (3) - manage a binary tree
tracediff (1) - find and print differences between two traces
ttyslot (3) - find the slot of the current user's terminal in some file
apropos find
Display all manual entries with the word find" in the page name or description. Output will resemble the following:
aa_find_mountpoint (2) - find where the apparmor interface filesystem is mounted
chkdupexe (1) - find duplicate executables
ffs (3) - find first bit set in a word
ffsl (3) - find first bit set in a word
ffsll (3) - find first bit set in a word
find (1) - search for files in a directory hierarchy
find2perl (1) - translate find command lines to Perl code
findaffix (1) - Interactive spelling checking
findfs (8) - find a filesystem by label or UUID
findmnt (8) - find a filesystem
findsmb (1) - list info about machines that respond to SMB name quer...
glob (3) - find pathnames matching a pattern, free memory from gl...
globfree (3) - find pathnames matching a pattern, free memory from gl...
ippfind (1) - find internet printing protocol printers
lfind (3) - linear search of an array
locate (1) - find files by name
memdiskfind (1) - utility to search for a MEMDISK instance
mlocate (1) - find files by name
mysql_find_rows (1) - extract SQL statements from files
oldfind (1) - search for files in a directory hierarchy
pidof (8) - find the process ID of a running program.
texdoc (1) - find & view documentation in TeX Live
tfind (3) - manage a binary tree
tracediff (1) - find and print differences between two traces
ttyslot (3) - find the slot of the current user's terminal in some file
apropos (在手冊頁面中搜索關鍵字或正則表達式)
在手冊頁面中搜索關鍵字或正則表達式。
apropos searches the manual pages for a keyword or regular expression.
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1 apropos 運行系統環境
2 apropos 語法
3 apropos 環境
4 apropos 示例
apropos 運行系統環境
Linux
apropos 語法
apropos [-dalhvV] [-e|-w|-r] [-s list] [-m system[,...]] [-M path] [-L locale] [-C file] keyword ...-d, --debug
打印調試信息。
-v, --verbose
打印冗長的警告信息。
-r, --regex
將每個關鍵字解釋為正則表達式。
這是默認行為。
每個關鍵字將與頁面名稱和描述相匹配。
它可以匹配任何一個的任何部分。
匹配并不局限于單詞邊界。
-w, --wildcard
將每個關鍵字解釋為包含shell樣式通配符的模式。
每個關鍵字將與頁面名稱和描述相匹配。
如果還使用了——exact，則僅當擴展的關鍵字與整個描述或頁面名稱匹配時才能找到匹配項。
否則，還允許關鍵字匹配描述中的單詞邊界。
-e, --exact
每個關鍵字將與頁面名稱和描述精確匹配。
-a, --and
僅顯示與所有提供的關鍵字匹配的項。
默認情況下顯示匹配任何關鍵字的項。
-l, --long
不要將輸出修剪到終端寬度。
通常，輸出將被截斷到終端寬度，以避免由于名稱部分寫得不好而產生難看的結果。
-s list, --sections list, --section list
只搜索給定的手冊部分。
列表是一個冒號或逗號分隔的部分列表。
如果列表中的條目是一個簡單的部分，例如“3”，那么顯示的描述列表將包括“3”、“3perl”、“3x”等章節中的頁面;
如果列表中的條目有擴展名，例如“3perl”，那么列表將只包含手冊部分中那個部分的頁面。
-m system[,...], --systems=system[,...]
如果該系統可以訪問其他操作系統的手冊頁面描述，則可以使用此選項進行搜索。
例如，要搜索名為“NewOS”的操作系統的手冊頁描述，請使用-m NewOS選項。
指定的系統可以是以逗號分隔的操作系統名稱的組合。
(要包含對本機操作系統的whatis描述的搜索，請在參數字符串中包含系統名man。
此選項將覆蓋$SYSTEM環境變量)。
-M path, --manpath=path
指定要搜索的一組以冒號分隔的手動頁面層次結構。
默認情況下，apropos使用$MANPATH環境變量，除非它是空的或未設置的，在這種情況下，它將根據您的$PATH環境變量確定適當的“MANPATH”。
此選項將覆蓋$MANPATH的內容。
-L locale, --locale=locale
apropos通常通過調用C函數setlocale來確定當前的語言環境，該函數詢問各種環境變量，可能包括$LC_MESSAGES和$LANG。
若要臨時覆蓋所確定的值，請使用此選項直接提供一個地區設置字符串。
注意，直到頁面搜索真正開始，它才會生效。
諸如幫助消息之類的輸出將始終在最初確定的語言環境中顯示。
-C file, --config-file=file
使用此用戶配置文件，而不是默認的~/.manpath。
-h, --help
打印幫助信息并退出。
-V, --version
UDisplay版本信息。
apropos [-dalhvV] [-e|-w|-r] [-s list] [-m system[,...]] [-M path] [-L locale] [-C file] keyword ...-d, --debug
Print debugging information.
-v, --verbose
Print verbose warning messages.
-r, --regex
Interpret each keyword as a regular expression. This is the default behavior. Each keyword will be matched against the page names and the descriptions independently. It can match any part of either. The match is not limited to word boundaries.
-w, --wildcard
Interpret each keyword as a pattern containing shell-style wildcards. Each keyword will be matched against the page names and the descriptions independently. If --exact is also used, a match will only be found if an expanded keyword matches an entire description or page name. Otherwise, the keyword is also allowed to match on word boundaries in the description.
-e, --exact
Each keyword will be exactly matched against the page names and the descriptions.
-a, --and
Only display items that match all the supplied keywords. The default is to display items that match any keyword.
-l, --long
Do not trim output to the terminal width. Normally, output will be truncated to the terminal width to avoid ugly results from poorly-written NAME sections.
-s list, --sections list, --section list
Search only the given manual sections. The list is a colon- or comma-separated list of sections. If an entry in list is a simple section, for example "3", then the displayed list of descriptions will include pages in sections "3", "3perl", "3x", and so on; while if an entry in list has an extension, for example "3perl", then the list will only include pages in that exact part of the manual section.
-m system[,...], --systems=system[,...]
If this system has access to other operating system's manual page descriptions, they can be searched using this option. For example, to search the manual page descriptions of an operating system called "NewOS", use the option -m NewOS. The system specified can be a combination of comma-delimited operating system names. (To include a search of the native operating system's whatis descriptions, include the system name man in the argument string. This option will override the $SYSTEM environment variable).
-M path, --manpath=path
Specify an alternate set of colon-delimited manual page hierarchies to search. By default, apropos uses the $MANPATH environment variable, unless it is empty or unset, in which case it will determine an appropriate "manpath" based on your $PATH environment variable. This option overrides the contents of $MANPATH.
-L locale, --locale=locale
apropos will normally determine your current locale by a call to the C function setlocale which interrogates various environment variables, possibly including $LC_MESSAGES and $LANG. To temporarily override the determined value, use this option to supply a locale string directly to apropos. Note that it will not take effect until the search for pages actually begins. Output such as the help message will always be displayed in the initially determined locale.
-C file, --config-file=file
Use this user configuration file rather than the default of ~/.manpath.
-h, --help
Print a help message and exit.
-V, --version
Display version information.
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apropos 環境
SYSTEM
如果設置了$SYSTEM，它將具有與指定為-m選項的參數相同的效果。
MANPATH
如果設置了$MANPATH，則將其值解釋為要使用的以冒號分隔的手動頁面層次結構搜索路徑。
MANWIDTH
如果設置了$MANWIDTH，它的值將用作終端寬度(參見——long選項)。
如果沒有設置，則在可用的情況下使用ioctl計算終端寬度，或者使用$COLUMNS的值，如果其他方法都失敗，則返回到80個字符。
POSIXLY_CORRECT
如果$POSIXLY_CORRECT被設置為null值，則默認的apropos搜索將作為擴展的regex (-r)。
在較新的系統上，這通常已經是默認行為。
SYSTEM
If $SYSTEM is set, it will have the same effect as if it had been specified as the argument to the -m option.
MANPATH
If $MANPATH is set, its value is interpreted as the colon-delimited manual page hierarchy search path to use.
MANWIDTH
If $MANWIDTH is set, its value is used as the terminal width (see the --long option). If it is not set, the terminal width will be calculated using an ioctl if available, the value of $COLUMNS, or falling back to 80 characters if all else fails.
POSIXLY_CORRECT
If $POSIXLY_CORRECT is set, even to a null value, the default apropos search will be as an extended regex (-r). On newer systems, this is often already the default behavior.
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apropos 示例
在頁面名稱或描述中顯示所有帶有“查找”字樣的手工條目。
輸出如下:
Display all manual entries with the word find" in the page name or description. Output will resemble the following:
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其他命令行
apt-cache | apt-get | ar | arch | arp | as | a2p | aspell | ac | at | awk | adduser | a2p | alias | agrep | addgroup |