10 More Discussions You Might Find Interesting
1. Red Hat
Cheers!
In /etc/syslog.conf, if an error type is not specified, is it logged anywhere (most preferable is it logged to /var/log/messages) or not?
To be more precise I am interested in error and critical level messages. At default these errors are not specified in syslog.conf, and I need to... (6 Replies)
Discussion started by: dr1zzt3r
6 Replies
2. Shell Programming and Scripting
Hello all!
This is my first post and I'm very new to programming. I would like help creating a simple perl or bash script that I will be using in my work as a junior bioinformatician.
Essentially, I would like to take a tab-delimted or .csv text with 3 columns and write them to a "3D" matrix:
... (16 Replies)
Discussion started by: torchij
16 Replies
3. Shell Programming and Scripting
Hello !
Experts, I saw a ton of postings here about Awk pattern matching and even after going through all of it, what I have concocted isnt working for me.
Here is what I am after.
I have a huge set of csv files and in the fifth column, I have text like this ---
ANFD10239CS9
BCDD93948CS9... (5 Replies)
Discussion started by: PG3
5 Replies
4. Shell Programming and Scripting
Hi Experts,
I've issue with the huge file.
My requirement is I need to search a pattern between the 155-156 position and if its match's to 31 or 36 then need to route that to a new separate files.
The main file has around 1459328 line and 2 GB in size. I tired with the below code which take... (9 Replies)
Discussion started by: senthil.ak
9 Replies
5. Shell Programming and Scripting
Find bumblebee and Megatron patterns (input2) in input1.
If it is + read input1 patterns from Left to Right
if it is - read input1 patterns from Right to Left
Y= any letter (A/B/C/D)
input1
c1 100 120 TF01_X1 + AABDDAAABDDBCADBDABC
c2 100 120 TF02_X2 - AABDDAAABDDBCBACDBBC... (2 Replies)
Discussion started by: bumblebee_2010
2 Replies
6. UNIX for Dummies Questions & Answers
Hi
I need to define a pattern that will match an open square bracket, a series of numbers fro 1 to 4 digits in length and a close square bracket. Examples of the numbers I will need to find are:
or
or
or
I am using BBEdit to search, and BBEdit uses the standard GREP search... (1 Reply)
Discussion started by: alisamii
1 Replies
7. UNIX for Dummies Questions & Answers
Hi All,
I have two files as below:
file1 file2
AAAA CCCC,1234,0909
BBBBB AAAA,1234
AAAA DDDD,23536,9090
CCCC
DDDD
EEEEE
I want a out file as below
AAAA,1234
BBBB
AAAA,1234... (5 Replies)
Discussion started by: thana
5 Replies
8. Shell Programming and Scripting
Hi folksSorry if code tags don't work out correctly but this PC does not have Java setup correctly to allow me to put them inproperly.I have a simple string pattern match behaving differntly on AIX and Solaris 10 and I don't understand why or what to do about it.This simple test: -) ]] && echo... (4 Replies)
Discussion started by: steadyonabix
4 Replies
9. Shell Programming and Scripting
I'm new to egrep. What pattern could I use to find all lines that match this pattern: <beginning of line><any amount of whitespace>sub<space>. I want it to return the entire line.
(I'm trying to generate a list of all Perl sub definitions in a list of Perl modules.)
Thanks for your help! (7 Replies)
Discussion started by: blondie53403
7 Replies
10. UNIX for Dummies Questions & Answers
Ok what is BSD exactly? I know its a type of open source but what is it exactly? (1 Reply)
Discussion started by: Corrail
1 Replies
Mined is a simple screen editor. At any instant, a window of 24
lines is visible on the screen. The current position in the file
is shown by the cursor. Ordinary characters typed in are insert-
ed at the cursor. Control characters and keys on the numeric
keypad (at the right-hand side of the keyboard) are used to move
the cursor and perform other functions. Commands exist to move
forward and backward a word, and delete words either in front of
the cursor or behind it. A word in this context is a sequence of
characters delimited on both ends by white space (space, tab,
line feed, start of file, or end of file). The commands for
deleting characters and words also work on line feeds, making it
possible to join two consecutive lines by deleting the line feed
between them. The editor maintains one save buffer (not dis-
played). Commands are present to move text from the file to the
buffer, from the buffer to the file, and to write the buffer onto
a new file. If the edited text cannot be written out due to a
full disk, it may still be possible to copy the whole text to the
save buffer and then write it to a different file on a different
disk with CTRL-Q. It may also be possible to escape from the ed-
itor with CTRL-S and remove some files. Some of the commands
prompt for arguments (file names, search patterns, etc.). All
commands that might result in loss of the file being edited
prompt to ask for confirmation. A key (command or ordinary char-
acter) can be repeated times by typing where is the escape key.
Forward and backward searching requires a regular expression as
the search pattern. Regular expressions follow the same rules as
in the editor, These rules can be stated as: Any displayable
character matches itself. . (period) matches any character ex-
cept line feed. ^ (circumflex) matches the start of the line. $
(dollar sign) matches the end of the line. c matches the char-
acter c (including period, circumflex, etc). [string] matches
any of the characters in the string. [^string] matches any of
the characters except those in the string. [x-y] matches any
characters between x and y (e.g., [a-z]). Pattern* matches any
number of occurrences of pattern. Some examples of regular ex-
pressions are:
The boy matches the string The boy
^$ matches any empty line.
^.$ matches any line containing exactly 1 character
^A.*.$ matches any line starting with an A, ending with a
period.
^[A-Z]*$ matches any line containing only capital letters (or
empty).
[A-Z0-9] matches any line containing either a capital letter
or a digit.
.*X$ matches any line ending in X
A.*B matches any line containing an A and then a B
Control characters cannot be entered into a file simply by typing
them because all of them are editor commands. To enter a control
character, depress the ALT key, and then while holding it down,
hit the ESC key. Release both ALT and ESC and type the control
character. Control characters are displayed in reverse video.
The commands are as follows.
CURSOR MOTION
arrows Move the cursor in the indicated direction
CTRL-A Move cursor to start of current line
CTRL-Z Move cursor to end of current line
CTRL-^ Move cursor to top of screen
CTRL-_ Move cursor to end of screen
CTRL-F Move cursor forward to start of next word
CTRL-B Move cursor backward to start of previous word
SCREEN MOTION
Home key Move to first character of the file
End key Move to last character of the file
PgUp key Scroll window up 23 lines (closer to start of the
file)
PgDn key Scroll window down 23 lines (closer to end of the
file)
CTRL-U Scroll window up 1 line
CTRL-D Scroll window down 1 line
MODIFYING TEXT
Del key Delete the character under the cursor
Backspace Delete the character to left of the cursor
CTRL-N Delete the next word
CTRL-P Delete the previous word
CTRL-T Delete tail of line (all characters from cursor to
end of line)
CTRL-O Open up the line (insert line feed and back up)
CTRL-G Get and insert a file at the cursor position
BUFFER OPERATIONS
CTRL-@ Set mark at current position for use with CTRL-C and
CTRL-K
CTRL-C Copy the text between the mark and the cursor into
the buffer
CTRL-K Delete text between mark and cursor; also copy it to
the buffer
CTRL-Y Yank contents of the buffer out and insert it at the
cursor
CTRL-Q Write the contents of the buffer onto a file
MISCELLANEOUS
numeric + Search forward (prompts for regular expression)
numeric - Search backward (prompts for regular expression)
numeric 5 Display the file status
CTRL-] Go to specific line
CTRL-R Global replace pattern with string (from cursor to
end)
CTRL-L Line replace pattern with string
CTRL-W Write the edited file back to the disk
CTRL-X Exit the editor
CTRL-S Fork off a shell (use CTRL-D to get back to the edi-
tor)
CTRL- Abort whatever the editor was doing and wait for com-
mand
CTRL-E Erase screen and redraw it
CTRL-V Visit (edit) a new file
Mined was designed by Andy Tanenbaum and written by Michiel Huis-
jes.