|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
Change entries in a file
Post 302950663 by Don Cragun on Monday 27th of July 2015 10:40:05 PM
07-27-2015
|
|
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi there,
I hope someone can help me with this problem :
I have a directory (/var/www/file/imgprofil) which contains about 10000 JPG files. They have a naming convention thus :
prefix-date-key-suffix.jpg
they all have the prefix p-20050608-
then AAAA is a 4 letter code
the suffix is... (7 Replies)
Discussion started by: steve7
7 Replies
2. Shell Programming and Scripting
Hi Friends,
I need to change crontab entries in prod.
$crontab -l -> using this i can see the entries only
Plese tell me how to edit this crontab and how to change the entires
Waiting for ......
Thanks In advance friends
Krish. (2 Replies)
Discussion started by: kittusri9
2 Replies
3. UNIX for Dummies Questions & Answers
Hi
I am accessing a file on nfs mounted device, after completing using of the file, i am tring to restore the access time and modification times of the file.
So i got the previous modified time of the file using stat() function and trying to set the date and time for the file, To set these... (6 Replies)
Discussion started by: deepthi.s
6 Replies
4. Shell Programming and Scripting
Hello,
say suppose i am processing an file emp.dat the field of which are
deptno empno empname etc
now say suppose i want to change the file to emp.lst then how can i do it? Here i what i attempted but in vain
BEGIN{
system("sort emp.dat > emp.lst")
FILENAME="emp.lst"
}
{
print... (2 Replies)
Discussion started by: salman4u
2 Replies
5. Shell Programming and Scripting
Hi, I am creating a ksh script to search for a string of text inside files within a directory tree. Some of these file are going to be read/execute only. I know to use chmod to change the permissions of the file, but I want to preserve the original permissions after writing to the file. How can I... (3 Replies)
Discussion started by: right_coaster
3 Replies
6. Shell Programming and Scripting
Hi All,
Please help i have written an ksh script, where i am actually take count of lines in one file and want to update this count to 2nd field of a new file and apend the this into an existing file.
Note the below script is in for loop
-------- I am apending few records in a file... (7 Replies)
Discussion started by: iamnoone
7 Replies
7. UNIX for Dummies Questions & Answers
How to edit crontab entries .
A job is scheduled as
35 15 * * * it.sh rahul_raj/hdhd
i want to change it as
45 15 * * * it.sh rahul_raj/hdhd
1.crontab -e
2.shift+g ---go to last line .press enter.Press <i> .
After this what should i do? (6 Replies)
Discussion started by: rafa_fed2
6 Replies
8. Shell Programming and Scripting
Hi,
I have a files in a directory as below :-
ls -1
mqdepth-S1STC02
proc-mq-S1STC01
proc-mq-S1STC02
proc-mq-S1STC03
Whereever i have S1STC i need to copy them into new file with file name S2STC.
expected output :-
ls -1
mqdepth-S2STC02
proc-mq-S2STC01
proc-mq-S2STC02... (3 Replies)
Discussion started by: satishmallidi
3 Replies
9. Shell Programming and Scripting
I have a bunch of file numbers in the file 'test':
I'm trying the above command to change all the instances of "H" to "Na+" in the file testsds.pdb at the line numbers indicated in the file 'test'. I've tried the following and various similar alternatives but nothing is working:
cat test |... (3 Replies)
Discussion started by: crunchgargoyle
3 Replies
10. UNIX for Beginners Questions & Answers
I have a log file, which i have divided into 14 files using csplit, the file looks like below
test-000000
test-000001 #and so on until 14
now I want all the 14 files generated to be renamed as the some part of test in first line of the file how can i eliminate the unwanted text?
sample... (5 Replies)
Discussion started by: Sekhar419
5 Replies
LEARN ABOUT V7
ppmtosixel
ppmtosixel(1) General Commands Manual ppmtosixel(1) NAME
ppmtosixel - convert a portable pixmap into DEC sixel format SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC LJ250 color inkjet printer. If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file. OPTIONS
-raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com- pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni- tude larger than a compressed file and prints much slower. -margin If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci- fied, a 1.5 inch left margin will offset the image. PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?. BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation. SEE ALSO
ppm(5) AUTHOR
Copyright (C) 1991 by Rick Vinci. 26 April 1991 ppmtosixel(1)