Hi,
Recently i did some code changes in one of the text file.
During the code review,i've been asked to allign the comments
in this file to XYZ columns(say XYZ=40).
Now the problem is that this file is a huge one and
it would be really pathetic if i go ahead and do it manually.
I think... (1 Reply)
HI,
I have a script where the date and time has to e printed separately as below
date = "Wed Jan 16 2008"
time = "14:17:57 IST"
using date command gives me tho out put
Wed Jan 16 14:17:57 IST 2008
i need only Wed Jan 16 2008 and 14:17:57 IST both stored in two different variables.... (8 Replies)
Hi
I have a file which contains the following two lines which are same But I would like to insert the value=8.8.8.8 in the 1st occurance line and value=9.9.9.9 in the 2nd occurance line.
<parameter name="TestIp1" value="">
<parameter name="TestIp1" value="">
Please suggest (1 Reply)
I want to print each user at time and
I wrote :
cat /etc/passwd | grep "/home" | cut -d: -f > USERS
for USER in `cat USERS`
do
echo "$user"
done
but it didn't work
thanks (7 Replies)
Hi,
I am unable to Difference between two time stamps in Linux and display the total elapsed time .
Source date: Aug 15, 2012 02:00:03
Target date: Aug 14, 2012 18:00:03
# based on the forums I am using the below function. Converted dates into this format
Src_dt=20120814180003... (7 Replies)
Please help me in rounding up value upto 2 decimal palces using sed command
#!/usr/bin/bash
a=15.42
b=13.33
c=`echo $a*$b |bc -l`
echo $c
above code is is giving output "205.5486" but i want the output as "205.55"
Thank you... (15 Replies)
Hi Friends,
I am facing a very strange issue . I type something on putty session of servers of my work(locating in North America) and it appears only after 7 seconds or so. I am located in India. It doesn't happen with my colleagues who are sitting next to me :(.
I use the ssh protocol to connect... (4 Replies)
Ok I would like to do the following
file test contains the following lines. between the lines ABC there may be any amount of lines up to the next ABC entry.
I want to grep for the filename.txt entry and print the lines in between (and including that line) up to and including the last line... (3 Replies)
I have to list the files of particular directory using file filter like find -name abc* something and if multiple file exist I also want time of each file up to seconds.
Currently we are getting time up to minutes in AIX is there any way I can get file last modification time up to seconds. (4 Replies)
Discussion started by: Nitesh sahu
4 Replies
LEARN ABOUT V7
col
COL(1) General Commands Manual COL(1)NAME
col - filter reverse line feeds
SYNOPSIS
col [-bfx]
DESCRIPTION
Col 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). Col is particularly useful for filtering multicolumn output made with the
`.rt' command of nroff and output resulting from use of the tbl(1) preprocessor.
Although col accepts half line motions in its input, it normally does not emit them on output. Instead, text that would appear between
lines is moved to the next lower full line boundary. This treatment can be suppressed by the -f (fine) option; in this case the output
from col may contain forward half line feeds (ESC-9), but will still never contain either kind of reverse line motion.
If the -b option is given, col assumes that the output device in use is not capable of backspacing. In this case, if several characters
are to appear in the same place, only the last one read will be taken.
The control characters SO (ASCII code 017), and SI (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 generated where
necessary to maintain the correct treatment of each character.
Col normally converts white space to tabs to shorten printing time. If the -x option is given, this conversion is suppressed.
All control characters are removed from the input except space, backspace, tab, return, newline, ESC (033) followed by one of 789, SI, SO,
and VT (013). This last character is an alternate form of full reverse line feed, for compatibility with some other hardware conventions.
All other non-printing characters are ignored.
SEE ALSO troff(1), tbl(1), greek(1)BUGS
Can't back up more than 128 lines.
No more than 800 characters, including backspaces, on a line.
COL(1)