Hello. I have one file that is a collection of discarded emails. Each email is it's own section with each section beginning with the same header (ie 'Another Email' ). I want to traverse through the file and every time I find the header ('Another Email') I then want to pick out the 'To:' line... (5 Replies)
Hello,
Our group is just starting to get into UNIX here. We are former REXX users on a VM Mainframe. Can someone point me to the documentation to read a file and write a file in a Unix Shell Script or does this have to be done in another language?
Thank you in advance...
Dave (3 Replies)
I need to write value of variable $version at a particular line in a text file.
Line number is determined by another variable &line......I don't know how to do it in shell script ... (2 Replies)
Hey Guys,
I was wondering if someone would give me a hand with an issue I'm having, let me explain the situation:
I have a file that is constantly being written to and read from with updated lines:
# cat activity.file
activity1
activity2
activity3
activity4
activity5
This file... (2 Replies)
I am trying to write .pgm images using the O_DIRECT flag in open().
I have a char* buffer which has the image data.
I know that I have to align the buffers and have done that using posix_memalign() yet only a part of the image gets written.
Has someone used O_DIRECT for writing files... (3 Replies)
Hi,
I have two text files. Need to create a third text file extracting specific data from first two existing files..
Text File 1: Format contains:
SQL*Loader: Release 10.2.0.1.0 - Production on Wed Aug 4 21:06:34 2010
some text ............so on...and somwhere text like:
Record 1:... (1 Reply)
Hello:
I have the following code:
----------------------------------
open (OUTPUT_FILE, ">>/usr/users/rovolis/PREPAID/CC/TCG/PP.$cyear$cmonth$cday.txt")||die "$!";
82 open (OUTPUT_FILE2, ">>/usr/users/rovolis/PREPAID/CC/TCG/PR.$cyear$cmonth$cday.txt")||die "$!";
83 # ... (0 Replies)
Hi,
I know the code to write a piece of text to the end of a given text file is
echo $text >> filename.txt
I would like to know how to write a piece of text to a file using shell, but the file name isn't given. I want it to write to whatever text file is currently open. Not to all text files... (2 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Write a template main.c file via shell script to make it easier for yourself later.
The issue here isn't writing... (2 Replies)
Discussion started by: george3isme
2 Replies
LEARN ABOUT LINUX
xzless
XZLESS(1) XZ Utils XZLESS(1)NAME
xzless, lzless - view xz or lzma compressed (text) files
SYNOPSIS
xzless [file...]
lzless [file...]
DESCRIPTION
xzless is a filter that displays text from compressed files to a terminal. It works on files compressed with xz(1) or lzma(1). If no
files are given, xzless reads from standard input.
xzless uses less(1) to present its output. Unlike xzmore, its choice of pager cannot be altered by setting an environment variable. Com-
mands are based on both more(1) and vi(1) and allow back and forth movement and searching. See the less(1) manual for more information.
The command named lzless is provided for backward compatibility with LZMA Utils.
ENVIRONMENT
LESSMETACHARS
A list of characters special to the shell. Set by xzless unless it is already set in the environment.
LESSOPEN
Set to a command line to invoke the xz(1) decompressor for preprocessing the input files to less(1).
SEE ALSO less(1), xz(1), xzmore(1), zless(1)Tukaani 2010-09-27 XZLESS(1)