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Unset array element and save to file in Bash
Post 302987033 by greet_sed on Saturday 3rd of December 2016 05:30:10 PM
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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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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");
my @arr;
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chomp;... (1 Reply)
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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
1 Replies
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,
CMD_STRING='-L 22 -s 0 -r -O -A i -N 100 -n'
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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
rt-clean-sessions-4
rt-clean-sessions(8) Request Tracker Reference rt-clean-sessions(8) NAME
rt-clean-sessions - clean old and duplicate RT sessions SYNOPSIS
rt-clean-sessions [--debug] [--older <NUM>[H|D|M|Y]] rt-clean-sessions rt-clean-sessions --debug rt-clean-sessions --older 10D rt-clean-sessions --debug --older 1M rt-clean-sessions --older 10D --skip-user DESCRIPTION
Script cleans RT sessions from DB or dir with sessions data. Leaves in DB only one session per RT user and sessions that aren't older than specified(see options). Script is safe because data in the sessions is temporary and can be deleted. OPTIONS
older Date interval in the "<NUM>[<unit>]" format. Default unit is D(ays), H(our), M(onth) and Y(ear) are also supported. For example: "rt-clean-sessions --older 1M" would delete all sessions that are older than 1 month. skip-user By default only one session per user left in the DB, so users that have sessions on multiple computers or in different browsers will be logged out. Use this option to avoid this. debug Turn on debug output. NOTES
Functionality similar to this is implemented in html/Elements/SetupSessionCookie ; however, that does not guarantee that a session will be removed from disk and database soon after the timeout expires. This script, if run from a cron job, will ensure that the timed out sessions are actually removed from disk; the Mason component just ensures that the old sessions are not reusable before the cron job gets to them. perl v5.14.2 2013-05-22 rt-clean-sessions(8)