|
|
495.
|
|
|
Display or execute commands from the history list. 
fc is used to list or edit and re-execute commands from the history list.
FIRST and LAST can be numbers specifying the range, or FIRST can be a
string, which means the most recent command beginning with that
string.
Options:
-e ENAME [tab]select which editor to use. Default is FCEDIT, then EDITOR,
[tab][tab]then vi
-l [tab]list lines instead of editing
-n [tab]omit line numbers when listing
-r [tab]reverse the order of the lines (newest listed first)
With the `fc -s [pat=rep ...] [command]' format, COMMAND is
re-executed after the substitution OLD=NEW is performed.
A useful alias to use with this is r='fc -s', so that typing `r cc'
runs the last command beginning with `cc' and typing `r' re-executes
the last command.
Exit Status:
Returns success or status of executed command; non-zero if an error occurs. |
|
|
[tab] represents a tab character.
Please write it exactly the same way, [tab], in your
translation.
|
|
|
represents a line break.
Start a new line in the equivalent position in the translation.
|
|
|
represents a space character.
Enter a space in the equivalent position in the translation.
|
|
|
|
|
Отображение или выполнение команд из журнала.
fc выводит список команд из журнала или позволяет изменить и повторно выполнить их.
Аргументы «первая» и «последняя» могут быть числами, определяющими диапазон.
Аргумент «первая» также может быть строкой, которая означает
последнюю команду, начинающуюся с этой строки.
Параметры:
-e редактор [tab]указать редактор По умолчанию используется $FCEDIT,
[tab][tab]затем следует $EDITOR, а затем [nbsp]— vi
-l [tab]показать строки вместо редактирования
-n [tab]не показывать номера строк в списке
-r [tab]инвертировать порядок строк (новые в начале)
При запуске в формате «fc -s [шаблон=замена ...] [команда]» команда
выполняется повторно после замены старая=новая.
Полезный псевдоним для команды [nbsp]— r='fc -s'. Так если ввести «r cc»,
будет выполнена последняя команда, начинающаяся с «cc», а если ввести «r»,
будет выполнена последняя команда.
Состояние выхода:
Возвращает успех или состояние выполненной команды. В случае ошибки возвращает ненулевое состояние. |
|
Translated by
Pavel Maryanov
|
|
|
|
Located in
builtins.c:734
|
|
|
496.
|
|
|
Move job to the foreground.
Place the job identified by JOB_SPEC in the foreground, making it the
current job. If JOB_SPEC is not present, the shell's notion of the
current job is used.
Exit Status:
Status of command placed in foreground, or failure if an error occurs. |
|
|
represents a line break.
Start a new line in the equivalent position in the translation.
|
|
|
represents a space character.
Enter a space in the equivalent position in the translation.
|
|
|
|
|
Перевод задания в интерактивный режим.
Переводит указанное задание в интерактивный режим, делая
его текущим заданием. Если задание не указано, используется
текущее задание.
Состояние выхода:
Возвращает состояние команды, переведённой в интерактивный режим, или ошибку, если возникла ошибка. |
|
Translated by
Pavel Maryanov
|
|
|
|
Located in
builtins.c:764
|
|
|
497.
|
|
|
Move jobs to the background.
Place the jobs identified by each JOB_SPEC in the background, as if they
had been started with `&'. If JOB_SPEC is not present, the shell's notion
of the current job is used.
Exit Status:
Returns success unless job control is not enabled or an error occurs. |
|
|
represents a line break.
Start a new line in the equivalent position in the translation.
|
|
|
represents a space character.
Enter a space in the equivalent position in the translation.
|
|
|
|
|
Перевод заданий в фоновый режим.
Переводит указанные задания в фоновый режим, как если бы
они были запущены с «&». Если задание не указано, используются данные
текущего задания.
Состояние выхода:
Возвращает успех, если не включено управление заданиями или не произошла ошибка. |
|
Translated by
Pavel Maryanov
|
|
|
|
Located in
builtins.c:779
|
|
|
498.
|
|
|
Remember or display program locations.
Determine and remember the full pathname of each command NAME. If
no arguments are given, information about remembered commands is displayed.
Options:
-d [tab][tab]forget the remembered location of each NAME
-l [tab][tab]display in a format that may be reused as input
-p pathname [tab]use PATHNAME is the full pathname of NAME
-r [tab][tab]forget all remembered locations
-t [tab][tab]print the remembered location of each NAME, preceding
[tab][tab]each location with the corresponding NAME if multiple
[tab][tab]NAMEs are given
Arguments:
NAME [tab][tab]Each NAME is searched for in $PATH and added to the list
[tab][tab]of remembered commands.
Exit Status:
Returns success unless NAME is not found or an invalid option is given. |
|
|
[tab] represents a tab character.
Please write it exactly the same way, [tab], in your
translation.
|
|
|
represents a line break.
Start a new line in the equivalent position in the translation.
|
|
|
represents a space character.
Enter a space in the equivalent position in the translation.
|
|
|
|
|
(no translation yet)
|
|
|
|
Located in
builtins.c:772
|
|
|
499.
|
|
|
Display information about builtin commands.
Displays brief summaries of builtin commands. If PATTERN is
specified, gives detailed help on all commands matching PATTERN,
otherwise the list of help topics is printed.
Options:
-d [tab]output short description for each topic
-m [tab]display usage in pseudo-manpage format
-s [tab]output only a short usage synopsis for each topic matching
[tab]PATTERN
Arguments:
PATTERN [tab]Pattern specifiying a help topic
Exit Status:
Returns success unless PATTERN is not found or an invalid option is given. |
|
|
[tab] represents a tab character.
Please write it exactly the same way, [tab], in your
translation.
|
|
|
represents a line break.
Start a new line in the equivalent position in the translation.
|
|
|
represents a space character.
Enter a space in the equivalent position in the translation.
|
|
|
|
|
(no translation yet)
|
|
|
|
Located in
builtins.c:797
|
|
|
500.
|
|
|
Display or manipulate the history list.
Display the history list with line numbers, prefixing each modified
entry with a `*'. An argument of N lists only the last N entries.
Options:
-c [tab]clear the history list by deleting all of the entries
-d offset [tab]delete the history entry at offset OFFSET.
-a [tab]append history lines from this session to the history file
-n [tab]read all history lines not already read from the history file
-r [tab]read the history file and append the contents to the history
[tab]list
-w [tab]write the current history to the history file
[tab]and append them to the history list
-p [tab]perform history expansion on each ARG and display the result
[tab]without storing it in the history list
-s [tab]append the ARGs to the history list as a single entry
If FILENAME is given, it is used as the history file. Otherwise,
if $HISTFILE has a value, that is used, else ~/.bash_history.
If the $HISTTIMEFORMAT variable is set and not null, its value is used
as a format string for strftime(3) to print the time stamp associated
with each displayed history entry. No time stamps are printed otherwise.
Exit Status:
Returns success unless an invalid option is given or an error occurs. |
|
|
[tab] represents a tab character.
Please write it exactly the same way, [tab], in your
translation.
|
|
|
represents a line break.
Start a new line in the equivalent position in the translation.
|
|
|
represents a space character.
Enter a space in the equivalent position in the translation.
|
|
|
|
|
(no translation yet)
|
|
|
|
Located in
builtins.c:821
|
|
|
501.
|
|
|
Display status of jobs.
Lists the active jobs. JOBSPEC restricts output to that job.
Without options, the status of all active jobs is displayed.
Options:
-l [tab]lists process IDs in addition to the normal information
-n [tab]list only processes that have changed status since the last
[tab]notification
-p [tab]lists process IDs only
-r [tab]restrict output to running jobs
-s [tab]restrict output to stopped jobs
If -x is supplied, COMMAND is run after all job specifications that
appear in ARGS have been replaced with the process ID of that job's
process group leader.
Exit Status:
Returns success unless an invalid option is given or an error occurs.
If -x is used, returns the exit status of COMMAND. |
|
|
[tab] represents a tab character.
Please write it exactly the same way, [tab], in your
translation.
|
|
|
represents a line break.
Start a new line in the equivalent position in the translation.
|
|
|
represents a space character.
Enter a space in the equivalent position in the translation.
|
|
|
|
|
(no translation yet)
|
|
|
|
Located in
builtins.c:857
|
|
|
502.
|
|
|
Remove jobs from current shell.
Removes each JOBSPEC argument from the table of active jobs. Without
any JOBSPECs, the shell uses its notion of the current job.
Options:
-a [tab]remove all jobs if JOBSPEC is not supplied
-h [tab]mark each JOBSPEC so that SIGHUP is not sent to the job if the
[tab]shell receives a SIGHUP
-r [tab]remove only running jobs
Exit Status:
Returns success unless an invalid option or JOBSPEC is given. |
|
|
[tab] represents a tab character.
Please write it exactly the same way, [tab], in your
translation.
|
|
|
represents a line break.
Start a new line in the equivalent position in the translation.
|
|
|
represents a space character.
Enter a space in the equivalent position in the translation.
|
|
|
|
|
(no translation yet)
|
|
|
|
Located in
builtins.c:884
|
|
|
503.
|
|
|
Send a signal to a job.
Send the processes identified by PID or JOBSPEC the signal named by
SIGSPEC or SIGNUM. If neither SIGSPEC nor SIGNUM is present, then
SIGTERM is assumed.
Options:
-s sig [tab]SIG is a signal name
-n sig [tab]SIG is a signal number
-l [tab]list the signal names; if arguments follow `-l' they are
[tab]assumed to be signal numbers for which names should be listed
Kill is a shell builtin for two reasons: it allows job IDs to be used
instead of process IDs, and allows processes to be killed if the limit
on processes that you can create is reached.
Exit Status:
Returns success unless an invalid option is given or an error occurs. |
|
|
[tab] represents a tab character.
Please write it exactly the same way, [tab], in your
translation.
|
|
|
represents a line break.
Start a new line in the equivalent position in the translation.
|
|
|
represents a space character.
Enter a space in the equivalent position in the translation.
|
|
|
|
|
(no translation yet)
|
|
|
|
Located in
builtins.c:903
|
|
|
504.
|
|
|
Evaluate arithmetic expressions.
Evaluate each ARG as an arithmetic expression. Evaluation is done in
fixed-width integers with no check for overflow, though division by 0
is trapped and flagged as an error. The following list of operators is
grouped into levels of equal-precedence operators. The levels are listed
in order of decreasing precedence.
[tab]id++, id-- [tab]variable post-increment, post-decrement
[tab]++id, --id [tab]variable pre-increment, pre-decrement
[tab]-, + [tab][tab]unary minus, plus
[tab]!, ~ [tab][tab]logical and bitwise negation
[tab]** [tab][tab]exponentiation
[tab]*, /, % [tab][tab]multiplication, division, remainder
[tab]+, - [tab][tab]addition, subtraction
[tab]<<, >> [tab][tab]left and right bitwise shifts
[tab]<=, >=, <, > [tab]comparison
[tab]==, != [tab][tab]equality, inequality
[tab]& [tab][tab]bitwise AND
[tab]^ [tab][tab]bitwise XOR
[tab]| [tab][tab]bitwise OR
[tab]&& [tab][tab]logical AND
[tab]|| [tab][tab]logical OR
[tab]expr ? expr : expr
[tab][tab][tab]conditional operator
[tab]=, *=, /=, %=,
[tab]+=, -=, <<=, >>=,
[tab]&=, ^=, |= [tab]assignment
Shell variables are allowed as operands. The name of the variable
is replaced by its value (coerced to a fixed-width integer) within
an expression. The variable need not have its integer attribute
turned on to be used in an expression.
Operators are evaluated in order of precedence. Sub-expressions in
parentheses are evaluated first and may override the precedence
rules above.
Exit Status:
If the last ARG evaluates to 0, let returns 1; let returns 0 otherwise. |
|
|
[tab] represents a tab character.
Please write it exactly the same way, [tab], in your
translation.
|
|
|
represents a line break.
Start a new line in the equivalent position in the translation.
|
|
|
represents a space character.
Enter a space in the equivalent position in the translation.
|
|
|
|
|
Расчёт математических выражений.
Выполняет расчёт всех аргументов в математическом выражении. Расчёт выполняется
для целых чисел фиксированной ширины с без проверки на переполнение.
Однако деление на 0 перехватывается и выдаётся ошибка. Указанные ниже операторы объединены
в группы с одинаковым приоритетом. Группы перечислены
в порядке уменьшения приоритета.
[tab]id++, id-- [tab]последующее увеличение и уменьшение переменной
[tab]++id, --id [tab]предварительное увеличение и уменьшение переменной
[tab]-, + [tab][tab]унарный минус и плюс
[tab]!, ~ [tab][tab]логическое и побитовое отрицание
[tab]** [tab][tab]возведение в степень
[tab]*, /, % [tab][tab]умножение, деление, остаток
[tab]+, - [tab][tab]сложение, вычитание
[tab]<<, >> [tab][tab]битовые сдвиги влево или вправо
[tab]<=, >=, <, > [tab]сравнение
[tab]==, != [tab][tab]равенство, неравенство
[tab]& [tab][tab]побитовое И
[tab]^ [tab][tab]побитовое исключающее ИЛИ
[tab]| [tab][tab]побитовое ИЛИ
[tab]&& [tab][tab]логическое И
[tab]|| [tab][tab]логические ИЛИ
[tab]выражение ? выражение : выражение
[tab][tab][tab]условный оператор
[tab]=, *=, /=, %=,
[tab]+=, -=, <<=, >>=,
[tab]&=, ^=, |= [tab]присвоение
в качестве операндов можно использовать переменные командного процессора. Название переменной
заменяется её значением (приводится к целому числу фиксированной ширины)
в выражении. У переменной не должен быть включён атрибут integer,
чтобы её можно было использовать в выражении.
Операторы вычисляются в порядке старшинства. Вложенные выражения в
скобках вычисляются первыми и могут переопределить указанные
выше правила старшинства.
Состояние выхода:
Если последний АРГУМЕНТ имеет значение 0, let возвращает 1. В противном случае let возвращает 0. |
|
Translated by
Pavel Maryanov
|
|
|
|
Located in
builtins.c:949
|
