Hi All,
I need to read line by line from a file(created using vi editor) till end of the file and pass it to my own executables so that it will read first line and execute and then other and so on...Thanks
The steps are like this;
1) read first line in file
2) execute the job with first line as... (2 Replies)
Hi,
Is it possible to read every 2 lines as single record, I have a file like below,
~CZK ~TSCHECHISCHE KRONE ~TSCHECH. REPUBLIK
Dec 1 2005 12:00AM~ 10.840000~
~DKK ~DAENISCHE KRONE ~DAENEMARK
Dec 2 2005 12:00AM~ ... (9 Replies)
How can I exclude reading lines in a file that contains the following:
filesystem:/home/pach/liv_patches 128005120 88456640 37270758 71% /home/patches
That is, all lines that contain and begins with filesystem: should not be processed/read from a file (5 Replies)
I want a script that while it read the lines in the file below,it will check if the second variable is greater or equal 10.if less delete the line
tom|2
john|5
simms|23
reed|30
paul|11
After running scripts i should get
simms|23
reed|30
paul|11 (5 Replies)
Hi Experts,
I am tryin to read a file and while doing so i need to skip the lines which start with a hash (#) char.
I thought of using a goto command but a lot of guys on this site say its not the good way to program. Moreover I am using a ksh shell which deos not support goto command.
... (4 Replies)
Hi all,
I jut use a loop to read lines from the user and redirect it to a file.
echo "Enter the line"
while read -r LINE
do
echo $LINE >> FILE
if ;then
break
fi
done
input
app... (1 Reply)
Dear all,
I have a file like this:
imput
scaffold_0 1
scaffold_0 10000
scaffold_0 20000
scaffold_0 25000
scaffold_1 1
scaffold_1 10000
scaffold_1 20000
scaffold_1 23283
and I want the output like this:
scaffold_0 1 scaffold_0 10000
scaffold_0 10000 scaffold_0 20000... (6 Replies)
Hello everyone,
I have thought about this for quite some time and know what I want to do but am having some trouble at it. I have a text file filled with numbers like this, there are more in the file obviously. Each number is separated by a space.
1 3 2 4 5
1 -1 1 0 -1 5The idea is... (7 Replies)
Hi,
I have been trying to do a little script in Csh, to classify some information of a text document.
My problem appears when i have to calssificate two parts of the same line into different variables, for example in the document appears something like that:
ID NAME
999999,Michel... (1 Reply)
Hi guys,
I need to read following lines and put them in same row ….
text: Abcd5437_XYA0_B1_WXYZ_BE
99:00:14:42:55:01:d4:22
99:00:14:42:70:01:d4:22
99:00:14:42:55:03:a0:22
99:00:14:42:70:03:a0:22
... (4 Replies)
Discussion started by: dc@bos
4 Replies
LEARN ABOUT REDHAT
fb.modes
fb.modes(8) Linux frame buffer utils fb.modes(8)NAME
fb.modes - frame buffer modes file
DESCRIPTION
/etc/fb.modes contains an unlimited number of video mode descriptions. The general format of a video mode is:
mode
geometry <xres> <yres> <vxres> <vyres> <depth>
timings <pixclock> <left> <right> <upper> <lower> <hslen> <vslen>
options <value>
endmode
OPTIONS
geometry options:
xres visible horizontal resolution (in pixels)
yres visible vertical resolution (in pixels)
vxres virtual horizontal resolution (in pixels)
vyres virtual vertical resolution (in pixels)
depth display depth (in bits per pixel)
timing options:
pixclock
length of one pixel (in picoseconds)
left left margin (in pixels)
right right margin (in pixels)
upper upper margin (in pixel lines)
lower lower margin (in pixel lines)
hslen horizontal sync length (in pixels)
vslen vertical sync length (in pixel lines)
other options:
the first value of this options is the default
hsync {low|high}
the horizontal sync polarity
vsync {low|high}
the vertical sync polarity
csync {low|high}
the composite sync polarity
extsync {false|true}
enable or disable external resync. If enabled the sync timings are not generated by the frame buffer device and must be pro-
vided externally instead. Note that this option may not be supported by every frame buffer device
laced {false|true}
enable or disable interlace. If enabled the display will be split in two frames, each frame contains only even and odd lines
respectively. These two frames will be displayed alternating, this way twice the lines can be displayed and the vertical fre-
quency for monitor stays the same, but the visible vertical frequency gets halved
double {false|true}
enable or disable doublescan. If enabled every line will be displayed twice and this way the horizontal frequency can easily
be doubled, so that the same resolution can be displayed on different monitors, even if the horizontal frequency specifica-
tion differs. Note that this option may not be supported by every frame buffer device
INTERNALS
Generally a frame buffer display is organized as follows:
+---+---------------+---+---+
| | ^ | | |
| | | 5 | | |
| | v | | |
+---#################---+---+
| # ^ # | |
| # | # | |
| # | # | |
| 1 # | 2 # 3 | 4 |
|<->#<------+------>#<->|<->|
| # | # | |
| # | 6 # | |
| # | # | |
| # v # | |
+---#################---+---+
| | ^ | | |
| | | 7 | | |
| | v | | |
+---+---------------+---+---+
| | ^ | | |
| | | 8 | | |
| | v | | |
+---+---------------+---+---+
1 left margin
2 xres
3 right margin
4 horizontal sync len
5 upper margin
6 yres
7 lower margin
8 vertical sync len
The area bordered with `#' is the visible display area. Horizontal and vertical frequencies can now easily be calculated, for this the sum
of horizontal or vertical values are important
htotal = left + xres + right + hslen
vtotal = upper + yres + lower + vslen
The length of one line can now be calculated with pixclock
line = pixclock * htotal
and we have the horizontal frequency
hfreq = 1E12 / line = 1E12 / (pixclock * htotal)
To get the vertical frequency vtotal must eventually adjusted. If the display is laced, vtotal must be halved or if the display is a dou-
blescan one, vtotal must be doubled. Now we can calculate the length of one frame
if (lace) vtotal /= 2
if (double) vtotal *= 2
frame = vtotal * line
and we get also the vertical frequency
vfreq = 1E12 / frame = hfreq / vtotal
SEE ALSO fbset(8), fbdev(4)local Aug 1996 fb.modes(8)