Поиск по:comet.sai.msu.ru -
Поискать по всем серверам
На этой странице приведены все страницы сервера comet.sai.msu.ru ,которые мы индексируем. Показаны документы 621 - 640 из 1544.
Упорядочить по:
URL
|
дате изменения
621. Example of contrasting files with the sdiff command
To contrast two files: sdiff -w 80 email addresses Mike erpl08@ed | ... This contrasts the two files email on the left and addresses on the right. The option -w 80 is used to set the width of the output from the command to 80 characters - the most that will fit across most computer terminals. The default is 130 characters. The first line in each file is different and is marked with a | Lines 3 and 4 of the file addresses are unique as is line 6 of the file email . ...
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/diff2.2.1.html -- 2.6 Кб -- 17.01.1997
Похожие документы
Похожие документы
622. Contrasting two text files
. To display a clear visual contrast between two text files use the command: sdiff file1 file2 . sdiff displays each line of the two files side by side, making it easier for you to see the difference between them. Lines that are different are shown with a | symbol. Lines unique to file1 are identified by a < symbol; lines unique to file2 with a > . A blank line indicates that the lines are identical. Example .
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/diff2.2.html -- 2.2 Кб -- 17.01.1997
Похожие документы
Похожие документы
623. Did You Know?
. The following topics are related to your present task. Select an item for more information about it. Comparing directories . Contrasting two text files . Comparing files under SCCS control .
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/diff2.html -- 1.9 Кб -- 17.01.1997
Похожие документы
Похожие документы
624. Searching the contents of a file
. To search a text file for a string of characters or a regular expression use the command: grep pattern filename(s) . Using this command you can check to see if a text file holds specific information. grep is often used to search the output from a command. Any regular expression containing one or more special characters must be quoted to remove their meaning. Examples . Did You Know? . Understanding regular expressions . Using regular expressions .
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/grep.html -- 2.4 Кб -- 17.01.1997
Похожие документы
Похожие документы
625. Examples of using the grep command
To search a file for a simple text string: grep copying help . This searches the file help for the string copying and displays each line on your terminal. To search a file using regular expression: grep -n '[dD]on\'t' tasks . ... Double quotes are used to quote the single quote in dDon't. To use the output of another command as input to the grep command: ls -l | grep '^d........x' . ... To redirect the results of a search to a file: grep Smith /etc/passwd > smurffs . ...
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/grep1.html -- 3.2 Кб -- 17.01.1997
Похожие документы
Похожие документы
626. Fast searches with the fgrep utility
. fgrep is a fast searching utility that searches for multiple fixed strings simultaneously. Its main use is for directory or bibliographic type searches. For example: fgrep -f surnames addresses . This searches the file addresses for each name held in the file surnames ; a text file with one name per line.
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/grep2.1.html -- 2.0 Кб -- 17.01.1997
Похожие документы
Похожие документы
627. Searching text files with an editor
. Text editors provide commands which you can use for searching the contents of a file. Searching with the MicroEMACS editor . Searching with the vi editor .
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/grep2.2.html -- 1.9 Кб -- 17.01.1997
Похожие документы
Похожие документы
628. Did You Know?
. The following topics are related to your present task. Select an item for more information about it. Fast searches with the fgrep utility . Searching files using a pager . Searching text files with an editor .
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/grep2.html -- 1.9 Кб -- 17.01.1997
Похожие документы
Похожие документы
629. Examples of using regular expressions
To search using enclosed characters: grep -n '[dD]on't' tasks . This uses a regular expression to find and display each line in the file tasks that contains the pattern don't or Don't . ... This lists all the lines in the file money that begin with a $ (dollar) sign. ... grep '^d........x' . This lists all the directories in the current directory for which other users have execute permission. ... This lists all the files and directories in the current directory which do not end in .xdh . ...
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/grep3.1.html -- 2.7 Кб -- 17.01.1997
Похожие документы
Похожие документы
630. Using regular expressions with the grep command
The following characters can be used to create regular expressions for searching on patterns with grep . Always quote the regular expression. This prevents the shell from interpreting the special characters before it is passed to the grep command. c any non-special character represents itself \\c turns off the meaning of any special character ^ beginning of a line $ end of a line . ...
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/grep3.html -- 2.6 Кб -- 17.01.1997
Похожие документы
Похожие документы
631. File manipulation utilities
. UNIX provides you with several utilities for working with text files . These utilities can be combined with each other to provide more complex general purpose tools. Comparing file contents . Finding a file . Removing duplicate lines with uniq . Searching the contents of a file . Sorting the content of a file .
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/index.html -- 2.1 Кб -- 17.01.1997
Похожие документы
Похожие документы
632. Unpacking a compressed tar file
To unpack a compressed tarfile use the zcat command. This leaves the compressed .Z tarfile intact. For example: zcat project.tar.Z | tar xvf - . The zcat command recreates the uncompressed tarfile, which is then piped into the tar command to extract the files. ... This is useful if you want to extract one or more files from the tar archive but do not have enough diskspace to uncompress the complete tarfile. ... This extracts the file main.c from the tar archive project.tar.Z . ...
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/next.html -- 2.6 Кб -- 17.01.1997
Похожие документы
Похожие документы
633. Sorting the content of a file
The sort command is a simple database tool. It allows you to specify the field to be sorted on and the type of sort to be carried out on it. sort filename . Lines are sorted into the following order: lines starting with numbers come first, followed by lines starting with upper-case letters, which are followed by lines starting with lower-case letters and finally symbols such as % and ! ... Saving the results of a sort to a file . Checking if a file has been sorted . ...
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/sort.html -- 2.5 Кб -- 17.01.1997
Похожие документы
Похожие документы
634. Examples of using the sort command
... To sort a file on field2 (the third word): sort +2 -3 names . This sorts the file names on the third word of each line. To sort several files using a different sort order and send the results to another file: sort -n -o report +1 -2 month[1-3] . ... To sort a file on a specific part of one field, using a different field delimiter, removing duplicate lines and sending the output to another file: sort -t: -o birthdays +3.2 -4.5 friends . ... Each field in this file is delimited by a : (colon). ...
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/sort1.html -- 2.8 Кб -- 17.01.1997
Похожие документы
Похожие документы
635. Changing the field delimiter
Unless you specify otherwise sort treats the one or more space characters between words as field delimiters. You may want to sort files where words are separated by another character such as a colon ( : ). Use the -t option to specify another character to act as the field delimiter. For example -t: . specifies the colon ( : ) character as the delimiter. One specific delimiter followed by another indicates an empty field. ... field2 is taken to be empty. ...
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/sort3.1.html -- 2.4 Кб -- 17.01.1997
Похожие документы
Похожие документы
636. Defining the sort field
The first field of each line starts at 0 (zero); the second is 1 (one) and so on. To define which field to sort on you give the position of the field at which to start the sort followed by the position at which to end the sort. The position at which to start the sort is given as the number of fields to skip to get to this position. ... tells sort to skip the first two fields. The position at which to stop the sort is given as the number of the field at the end of which the sort stops. ...
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/sort3.2.html -- 2.5 Кб -- 17.01.1997
Похожие документы
Похожие документы
637. Sorting on several fields
You can sort a file on several fields with the same sort command. The file is sorted on the first field; if some lines have the same value for this field they are sorted on the next field you specify and so on. ... Each field is separated by a space. ... sort -o results +3 -5 scores . ... From the first sort on field 4 (age) sort finds that Rice and Bramley are the same age so it now sorts these two lines on field 5 (score), placing Rice (67) before Bramley (75). ...
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/sort3.3.html -- 2.7 Кб -- 17.01.1997
Похожие документы
Похожие документы
638. Sorting on a specific part of a field
You can also sort on a specific part of a field if necessary. To define which part of a field to sort on you give the position in the field at which to start the sort followed by the position in the field at which to end the sort. The position at which to start the sort is given as the number of fields to skip followed by the number of characters to skip. ... tells sort to skip the first two fields and the first three characters of field 3. ...
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/sort3.4.html -- 2.6 Кб -- 17.01.1997
Похожие документы
Похожие документы
639. Sorting on a specific field
. Lines are sorted character by character, starting at the first character in the line. You can also sort the contents of a file on a specific part of each line. Each line of text is a series of fields - words and other characters - separated from each other by a delimiter character - the spaces between the words. Changing the field delimiter . Defining the sort field . Sorting on several fields . Sorting on a specific part of a field .
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/sort3.html -- 2.2 Кб -- 17.01.1997
Похожие документы
Похожие документы
640. Saving the results of a sort to a file
. sort sends its results directly to your screen. To save them to a file use the -o option. For example: sort -o mail addresses . This saves the results of sorting the file addresses in the file mail .
[
Сохраненная копия
]
Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities2/sort4.html -- 1.9 Кб -- 17.01.1997
Похожие документы
Похожие документы