I hope i have understood you correctly: regular expressions can be made to apply only on a limited group of lines:
will start printing lines (the "p" command) on the line containing "start" and continue to print the lines until it finds a line containing "finish", when it will stop printing them, until it again encounters a line containing "start", etc.
To print only the last group of lines is a bit tricky: copy everything in one such group to the holdspace, overwriting it every time a new group starts. Upon reaching the last line output the hold space and you are done.
Hi,
I need to create a script that does the following:
1. Read the file for the occurrences of "EXECUTE" and "END" strings.
There will be several occurrences of EXECUTE and END strings on the file.
2. The resulting lines in #1, needs to be searched for the word... (11 Replies)
Hi Gurus,
I have a file say for ex. file1 which has 3500 lines in it which are different account numbers and another file (file2) which has 230000 lines in it. I want to read all the lines in file1 and delete all those lines from file2 which has that same pattern as in file1. I am not quite... (4 Replies)
hi,
I have the following file
hello
world
this
is
to
say
bye
to
everyone
so
bye
I want to get the lines from hello to the first bye inclusive into another file?
how can I do this (11 Replies)
Hi All,
I have a small query. I have a file containing the following lines
File 1:
29-Jul-2011 GMT Static data requires update <Extraction should start here>
-----------
-----------
--------------------
-----------------------
----------- <should stop here>
Pattern1 will be time... (2 Replies)
Thanks for the help yesterday. I have a little modification today,
I am trying the following:
i have a log file of a webbap which logs in the following pattern:
2011-08-14 21:10:04,535 blablabla ERROR Exception1 blablabla
bla
bla
bla
bla
2011-08-14... (2 Replies)
Guys,
I am trying the following:
i have a log file of a webbap which logs in the following pattern:
2011-08-14 21:10:04,535 blablabla ERROR blablabla
bla
bla
bla
bla
2011-08-14 21:10:04,535 blablabla ERROR blablabla
bla
bla
bla
... (6 Replies)
Greetings experts. Searched the forums (perhaps not hard enough?) - Am searching for a method to capture all output from a log file following the nth occurrence of a known string.
Background:
Using bash, I want to monitor my Oracle DB alert log file. The script will count the total # of... (2 Replies)
I need help with extract/print lines till stop pattern. This needs to happen after every 3rd occurrence of start pattern and continue till end of file. Consider below is an example of the log file. my start pattern will be every 3rd occurrence of ERROR_FILE_NOT_FOUND and stop pattern will be... (5 Replies)
Hi, I need to print lines which are matching with start pattern "SELECT" and END PATTERN ";" and only select the last "select" statement including the ";" .
I have attached sample input file and the desired input should be as:
INPUT FORMAT:
SELECT
ABCD,
DEFGH,
DFGHJ,
JKLMN,
AXCVB,... (5 Replies)
Discussion started by: nani2019
5 Replies
LEARN ABOUT ULTRIX
col
col(1) General Commands Manual col(1)Name
col - filter reverse line feeds
Syntax
col [-options]
Description
The command reads the standard input and writes the standard output. It performs the line overlays implied by reverse line feeds (ESC-7 in
ASCII) and by forward and reverse half line feeds (ESC-9 and ESC-8, respectively). The command is particularly useful for filtering multi-
column output made with the command of and for filtering output resulting from the preprocessor.
Although accepts half line motions in its input, it does not normally output them. Instead, text that would appear between lines is moved
to the next lower full line boundary.
The control characters SO (ASCII code 017) and SI (ASCII code 016) are assumed to start and end text in an alternate character set. The
character set (primary or alternate) associated with each printing character read is remembered. On output, SO and SI characters are gen-
erated where necessary to maintain the correct treatment of each character.
The command normally converts white space to tabs to shorten printing time. If the -h option is given, this conversion is suppressed.
On input, the only control characters accepted are <space>, <backspace>, <tab>, <return>, <newline>, etc... The VT character is an alter-
nate form of full reverse linefeed, included for compatibility with earlier programs of this type. All other non-printing characters are
ignored.
Options-b Assumes that the output device does not have backspacing.
-f Suppresses moving half lines to the next full line.
-h Suppresses conversion of white space to tabs.
-p Forces through unchanged any unknown escape sequences that are found in its input. This option should be used with care.
-x Suppresses conversion of white space to tabs (same as -h).
Restrictions
Cannot back up more than 128 lines.
No more than 800 characters, including backspaces, on a line.
See Alsotbl(1), nroff(1)col(1)