Hi everyone,
Can anyone guide me on how to search through a huge file and look on specific column and if it finds a discrepancy on that column that does not conform to the specified criteria,
ie
(1) Numeric and (3) alpha chars F123 or G333..etc, etc!
then idientify it and redirect... (3 Replies)
Hi, I am n00b to shell scripting and I am learning Ksh, sed and awk. I have a requirement and need your help.
1) How to read a specific section of a file. I have a file and I want to read the contents between say "Page Number:1" to "End of Page 1"
2) Within the section of the file that was... (2 Replies)
Alright,
I'm new to Perl so be gentle. Given the following script:
----
open(file, "<file.txt");
@lines = <file>;
close(file);
$var = print $lines;
----
So I'm printing line 18 of the file "file.txt". I now want the 5th column, minus the forward slash. The line looks like this:
... (2 Replies)
Hi Friends,
I have a file with the following values..
xyz.txt,12345.xml
abc.txt,04567.xml
cde.txt,12134.xml
I would like to extract all the 2nd column values twice as shown in the example like
12345,12345.xml
04567,04567.xml
12134,12134.xml
Please advice!!
In the formus one of... (7 Replies)
I have a list of Servers in no particular order as follows:
virtualMachines="IIBSBS IIBVICDMS01 IIBVICMA01"And I am generating some output from a pre-existing script that gives me the following (this is a sample output selection).
9/17/2010 8:00:05 PM: Normal backup using VDRBACKUPS... (2 Replies)
Hi guys...Wow I just composed a huge post and it got erased as I was logged out automatically
Anyways I hope someone can help me out here.
So the task I'm working on is like this
I have a bunch of files that I care about sitting in a directory say $HOME/files
Now my job is to go and loop... (6 Replies)
i have a log file that has the date and time that looks like this:
Wed Jun 28 15:46:21 2012 test failed tailed passed passed not error panic
what we want to focus on is the first 5 columns because they contain the date and time.
the date and time can be anywhere on the line. in this... (6 Replies)
Hello,
I have to a add 2 lines to /etc/sudoers file under this section below, can someone please suggest script to add these two lines when execute this remotely on to a multiple servers.
before
## Allow root to run any commands anywhere
root ALL=(ALL) ALL
After
## Allow root... (2 Replies)
Hi all,
Recently I facing problem with my AIX server. we experience slowness on performance. there are some application installed in this server such as : Oracle 10g database, control-m client agent, and some monitoring tools.
when we're facing the problem we're noticing that vmstat value a... (7 Replies)
Dear all,
I have a specific problem that i cannot solve and I hope someone here can help me. :)
I have two text files with one column of values.
Example:
File1:
67
94
95
.
.
File2
0.1
0.003
0.5
.
. (3 Replies)
Discussion started by: Higgo
3 Replies
LEARN ABOUT LINUX
col
COL(1) BSD General Commands Manual COL(1)NAME
col -- filter reverse line feeds from input
SYNOPSIS
col [-bfhpx] [-l num]
DESCRIPTION
The col utility filters out reverse (and half reverse) line feeds so that the output is in the correct order with only forward and half for-
ward line feeds, and replaces white-space characters with tabs where possible. This can be useful in processing the output of nroff(1) and
tbl(1).
The col utility reads from the standard input and writes to the standard output.
The options are as follows:
-b Do not output any backspaces, printing only the last character written to each column position.
-f Forward half line feeds are permitted (``fine'' mode). Normally characters printed on a half line boundary are printed on the fol-
lowing line.
-h Do not output multiple spaces instead of tabs (default).
-l num Buffer at least num lines in memory. By default, 128 lines are buffered.
-p Force unknown control sequences to be passed through unchanged. Normally, col will filter out any control sequences from the input
other than those recognized and interpreted by itself, which are listed below.
-x Output multiple spaces instead of tabs.
The control sequences for carriage motion that col understands and their decimal values are listed in the following table:
ESC-7 reverse line feed (escape then 7)
ESC-8 half reverse line feed (escape then 8)
ESC-9 half forward line feed (escape then 9)
backspace moves back one column (8); ignored in the first column
carriage return (13)
newline forward line feed (10); also does carriage return
shift in shift to normal character set (15)
shift out shift to alternate character set (14)
space moves forward one column (32)
tab moves forward to next tab stop (9)
vertical tab reverse line feed (11)
All unrecognized control characters and escape sequences are discarded.
The col utility keeps track of the character set as characters are read and makes sure the character set is correct when they are output.
If the input attempts to back up to the last flushed line, col will display a warning message.
ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of col as described in environ(7).
EXIT STATUS
The col utility exits 0 on success, and >0 if an error occurs.
SEE ALSO colcrt(1), expand(1), nroff(1), tbl(1)STANDARDS
The col utility conforms to Version 2 of the Single UNIX Specification (``SUSv2'').
HISTORY
A col command appeared in Version 6 AT&T UNIX.
BSD August 4, 2004 BSD