Sponsored Content
Top Forums Shell Programming and Scripting writing the timestamp to as a header in a file Post 302576933 by ahamed101 on Sunday 27th of November 2011 03:14:25 PM
Old 11-27-2011
Use -f option

man mv

Quote:
-f, --force
do not prompt before overwriting
HTH
--ahamed
This User Gave Thanks to ahamed101 For This Post:
 

10 More Discussions You Might Find Interesting

1. Linux

Reading the header of a tar file(posix header)

say i have these many file in a directory named exam. 1)/exam/newfolder/link.txt. 2)/exam/newfolder1/ and i create a tar say exam.tar well the problem is, when i read the tar file i dont find any metadata about the directories,as you cannot create a tar containig empty directories. on the... (2 Replies)
Discussion started by: Tanvirk
2 Replies

2. Shell Programming and Scripting

Change File Header Timestamp

Please I am new to Unix and this simple question I am already answered but struggling to find the answer. I have a data file which contains header record which conatins date timestamp. I need to find a way of simply updating the date time stamp to current date timestamp. So if the header... (5 Replies)
Discussion started by: mudi
5 Replies

3. Shell Programming and Scripting

Comparing one file header with another file header

Hi Experts, In our project we have requirement where in we have to compare header of one file with header in the parameter file. There are 20 files which we ftp from one site. All this files have different header. We are comapring this file with our parameter file(which is having the header... (2 Replies)
Discussion started by: Amey Joshi
2 Replies

4. Shell Programming and Scripting

Getting a relative timestamp from timestamp stored in a file

Hi, I've a file in the following format 1999-APR-8 17:31:06 1500 3 45 1999-APR-8 17:31:15 1500 3 45 1999-APR-8 17:31:25 1500 3 45 1999-APR-8 17:31:30 1500 3 45 1999-APR-8 17:31:55 1500 3 45 1999-APR-8 17:32:06 1500 3 ... (1 Reply)
Discussion started by: vaibhavkorde
1 Replies

5. UNIX for Dummies Questions & Answers

How to compare a file by its timestamp and store in a different location whenever timestamp changes?

Hi All, I am new to unix programming. I am trying for a requirement and the requirement goes like this..... I have a test folder. Which tracks log files. After certain time, the log file is getting overwritten by another file (randomly as the time interval is not periodic). I need to preserve... (2 Replies)
Discussion started by: mailsara
2 Replies

6. UNIX for Dummies Questions & Answers

Merge all csv files in one folder considering only 1 header row and ignoring header of all others

Friends, I need help with the following in UNIX. Merge all csv files in one folder considering only 1 header row and ignoring header of all other files. FYI - All files are in same format and contains same headers. Thank you (4 Replies)
Discussion started by: Shiny_Roy
4 Replies

7. Shell Programming and Scripting

To check timestamp in logfile and display lines upto 3 hours before current timestamp

Hi Friends, I have the following logfile. Currently time in india is 07/31/2014 12:33:34 and i have the following content in logfile. I want to display only those entries which contain string 'Exception' within last 3 hours. In this case, it would be the last line only I can get the... (12 Replies)
Discussion started by: srkmish
12 Replies

8. Shell Programming and Scripting

Python DictWriter header - not writing in first line of existing file

Hello I am facing a very unique problem and not able to understand why. I have written a function which will check header of the file. If header is present good else it will write the header on top def writeHeaderOutputCSV(fileName): # See if the file exist already try: ... (0 Replies)
Discussion started by: radioactive9
0 Replies

9. Shell Programming and Scripting

Find header in a text file and prepend it to all lines until another header is found

I've been struggling with this one for quite a while and cannot seem to find a solution for this find/replace scenario. Perhaps I'm getting rusty. I have a file that contains a number of metrics (exactly 3 fields per line) from a few appliances that are collected in parallel. To identify the... (3 Replies)
Discussion started by: verdepollo
3 Replies

10. Programming

Node-RED: Writing MQTT Messages to MySQL DB with UNIX timestamp

First, I want to thank Neo (LOL) for this post from 2018, Node.js and mysql - ER_ACCESS_DENIED_ERROR I could not get the Node-RED mysql module to work and searched Google until all my links were purple! I kept getting ER_ACCESS_DENIED_ERROR with the right credentials. Nothing on the web was... (0 Replies)
Discussion started by: Neo
0 Replies
ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME
ppmtopgm - convert a portable pixmap into a portable graymap SYNOPSIS
ppmtopgm [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces a portable graymap as output. The output is a "black and white" rendering of the original image, as in a black and white photograph. The quantization formula used is .299 r + .587 g + .114 b. Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any ppm program can read pgm (and pbm ) files automatically. pgmtoppm is for colorizing a pgm file. Also, see ppmtorgb3 for a different way of converting color to gray. And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate the original colors, not necessarily a way that looks like a black and white photograph. QUOTE
Cold-hearted orb that rules the night Removes the colors from our sight Red is gray, and yellow white But we decide which is right And which is a quantization error. SEE ALSO
pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5) AUTHOR
Copyright (C) 1989 by Jef Poskanzer. 10 April 2000 ppmtopgm(1)
All times are GMT -4. The time now is 07:28 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy