i'm using SOX to generate a spectrogram from a wave file with the command :
is there a way to create a spectrogram using the same command but reading file timestamps instead of the namefile.wav , since name is changing every 4 hours? (it's saved with cron at /direxample/test-$(date -v +\%H\%M).wav
Can someone help me with a Unix or perl script to convert the unix timestamps to human readable format?
Any help will be highly appreciated... (3 Replies)
I'm writting a script to find the difference between two timestamp. One field i get on delivery time of the file like 07:17 AM and other is my SLA time 06:30 AM
I need to find the difference between these two time (time exceeded to meet SLA). Need some suggestions. (8 Replies)
Hello!
I have the following problem.
I read a file using perl, each line of this file has the fllowing format.
14/4/2008 8:42:03 πμ|10800|306973223399|4917622951117|1||1259|1|126|492|433||19774859454$
Th first field is the timestamp and the second field is the offset in seconds.
How can... (1 Reply)
Hi Friends,
please advise on shell script to add two time stamps
for example :
a=12:32
b=12:00
c=a+b=00:32
please help me to find shell script to add to two time stamps, as i need to convert time from EST to GMT or SST to prepare status of jobs in unix and to specify estimated time to... (3 Replies)
Hi,
We have smb client running on two of the linux boxes and smb server on another linux system. During a backup operation which uses smb, read of a file was allowed while write to the same file was going on.Also simultaneous writes to the same file were allowed.Following are the settings in the... (1 Reply)
Hi! Long time reader first time registered user and poster.
I've picked up some times and tricks and I'm at a dead end... I've parsed a log file for duplicates and printed only the two fields I need (duplicate entry and time stamp).
My question is, with this output, how would I script... (2 Replies)
Hi,
i have current timestamp, lets say "12:02:45" in an variable (var1) and another timestamp "08:30:00" fetched from table in another variable2 (var2).
How do i compare 2 timestamps in unix shell scripting.
if var 1 > var 2 then echo message.
Thanks in advance. (3 Replies)
Hello fellow Unix geeks,
I have been given a very urgent assignment in my office on writing a particular Shell script but I'm very much new to it.I would appreciate any help from you on solving this problem--which might seem very trivial to you.
The Unix flavour is a Sun Solaris one..(not... (6 Replies)
Hi all!!,
I'm using Ksh and working on Linux.
I want to compare two timestamps, timestamp1 and timestamp2.
Until, timestamp1 is lesser than timestamp2, i want to do something, lets say print something.
The code i have written is:
a=`date +%H:%M:%S`
b=`date +%H:%M:%S -d" 1... (1 Reply)
I am having problems because some of my files have timestamps that are earlier that 1.1.1970, the Unix start of time convention.
So I would like to write a script that finds all files in home folder and subfolders with timestamps earlier than 1.1.1970 and converts them to 1.1.1980.
I... (3 Replies)
Discussion started by: francus
3 Replies
LEARN ABOUT ULTRIX
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)