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Unset array element and save to file in Bash
Post 302987034 by cogiz on Saturday 3rd of December 2016 05:46:09 PM
12-03-2016
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9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I am writing a BASH script. My questions regard deleting elements of arrays.
I have an array:
michael-browns-powerbook-g4-15:~ msb65$ test_array=(1 2 3 4)
michael-browns-powerbook-g4-15:~ msb65$ echo ${test_array}
1 2 3 4
To delete the second element of test_array I type:... (3 Replies)
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2. Shell Programming and Scripting
Hi,
I'm trying to write a function that redirects the contents of an
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3. Shell Programming and Scripting
i have a file,like
1 3
4 5
6 7
8 9
i want to save it into an array.
and then i want to get every element, because i want to use them to calculate. for example: i want to calculate 1 + 3.
but i cannot reach my goal.
open (FILE, "<", "number");
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4. Shell Programming and Scripting
Hi there.
i have created a program that in the end it will give output like this
1 2 3 4 5
10 9 8 7 6
11 12 13 14 15
.............. 17
i wonder how to save the output into a single string and into a file.
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5. Homework & Coursework Questions
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:
Hi there.
i have created a program that in the end it will give output like this
1 2 3 4 5
10 9 ... (1 Reply)
Discussion started by: shdin271
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6. Shell Programming and Scripting
Hi, I have an ksh array(ARR). the elements to the array are file names. i need to go to each file in the array and manipulate the records.
for name in ${files}; do ---this loop is for all the file names in the array
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Hello,
I have a simple task and I am having some trouble with the syntax. I have a variable with an assigned value,
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I'm working on a script to execute a number of items. One being, editing particular files to add certain lines. I'm attempting to utilize sed, but, having issues when running from a bash script. Assistance is greatly appreciated.
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9. Shell Programming and Scripting
I am trying to select a file in bash and save it to a directory. The below does run but no selected file is saved. Thank you :).
bash
# select file
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LEARN ABOUT DEBIAN
qrencode
QRENCODE(1) General Commands Manual QRENCODE(1) NAME
qrencode - Encode input data in a QR Code and save as a PNG or EPS image. SYNOPSIS
qrencode [OPTION]... [STRING] DESCRIPTION
Libqrencode is a library for encoding data in a QR Code symbol, a kind of 2D symbology that can be scanned by handy terminals such as a mobile phone with CCD. The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness. Qrencode is a utility software using libqrencode to encode string data in a QR Code and save as a PNG or EPS image. OPTIONS
-h, --help display help message. -o FILENAME, --output=FILENAME write image to FILENAME. If '-' is specified, the result will be output to standard output. If -S is given, structured symbols are written to FILENAME-01.png, FILENAME-02.png, ... (suffix is removed from FILENAME, if specified) -s NUMBER, --size=NUMBER specify the size of dot (pixel). (default=3) -l {LMQH}, --level={LMQH} specify error collectin level from L (lowest) to H (highest). (default=L) -v NUMBER, --symversion=NUMBER specify the version of the symbol. (default=auto) -m NUMBER, --margin=NUMBER specify the width of margin. (default=4) -d NUMBER, --dpi=NUMBER specify the DPI of the generated PNG. (default=72) -t {PNG,EPS,ANSI,ANSI256}, --type={PNG,EPS,ANSI,ANSI256} specify the type of the generated image. (default=PNG) -S, --structured make structured symbols. Version must be specified. -k, --kanji assume that the input text contains kanji (shift-jis). -c, --casesensitive encode lower-case alphabet characters in 8-bit mode. (default) -i, --ignorecase ignore case distinctions and use only upper-case characters. -8, --8bit encode entire data in 8-bit mode. -k, -c and -i will be ignored. -M, --micro encode in a Micro QR Code. (experimental) -V, --version display the version number and copyrights of the qrencode. [STRING] input data. If it is not specified, data will be taken from standard input. EXAMPLES
qrencode -l L -v 1 -o output.png 'Hello, world!' encode into a symbol version 1, level L. qrencode -iSv 1 --output=output.png read standard input and encode it into a structured-appended symbols in case-insensitive mode. AUTHOR
Written by Kentaro Fukuchi. RESOURCES
Main Web Site: http://fukuchi.org/works/qrencode/ Source code repository: https://github.com/fukuchi/libqrencode/ COPYRIGHT
Copyright (C) 2006-2012 Kentaro Fukuchi. qrencode 3.3.0 Feb. 29, 2012 QRENCODE(1)