A array is the simplest data-structure for storing items in continuously memory
2
votes
1answer
72 views
awk array using number as value did not work
I have a reference file:
Refrence File
Dpse\GA30012 FBgn0000447 chr2 26607738 26607962 -1
Dpse\GA19764 FBgn0085819 chrX 28571020 28571736 -1
Dpse\ttk FBgn0000100 chr2 ...
0
votes
2answers
40 views
How can I store each seperate entire line in a text file into an array?
I have a file called "threewords". It contains the information:
\#gray speedy bee
gr-A | sp-E-d-E | b-E
\#gray greedy pea
gr-A | gr-E-d-E | p-E
When I run the command:
cat threewords | grep ^# ...
0
votes
2answers
44 views
for loop not working for multiple lines
I have a array like this "Apple Banana Clementine Date"
I have to print like this:
1. Apple
2. Banana
3. Clementine
4. Date
Script file:
for i in "${fruits[@]}"; do
echo "$lineno. $i "
...
0
votes
0answers
38 views
awk - how does the for loop work when counting words? [duplicate]
I have got the following awk script from here that counts the frequency of the words in a file-:
# Print list of word frequencies
{
for (i = 1; i <= NF; i++)
freq[$i]++
}
END {
...
2
votes
1answer
48 views
Bash Array Comparision
Within a bash script, I am building two dynamic arrays. And I want to construct another array with difference of two.
Example:
array1=("aa-1234|safsf|sfsfs" "aa-2345|sfsfs|n0sfm" ...
3
votes
3answers
143 views
Split in awk not not printing array values
I have a string tstArr2 which has the following content
'3 5 8'
Now in awk I want to parse a flat file
test my array which array is better array
INDIA USA SA NZ AUS ARG GER BRA
US AUS INDIA ENG ...
1
vote
0answers
36 views
How to force bash to start at index 0 with select output?
Well, even some less-experienced bash users would know meanwhile about the fact that bash arrays would always start with index 0.
However, select will always do its own thing, as the following example ...
1
vote
2answers
37 views
Randomize arguments ( that hold color codes) from an array
I have the array (shown below) with arguments that hold color codes.
The intended purpose of my script is to randomize those arguments when the user inputs "scriptname randoms Text" so that every time ...
1
vote
5answers
99 views
How to create an array of unique elements from a string/array in bash?
If I have a string "1 2 3 2 1" - or an array [1,2,3,2,1] - how can I select the unique values, i.e.
"1 2 3 2 1" produces "1 2 3"
or
[1,2,3,2,1] produces [1,2,3]
Similar to uniq but uniq seems ...
2
votes
2answers
45 views
How to select unique array values?
I have an array and I want to get the unique 2nd members
bash doesn't really have 2-dimensional array so I've defined it this way, using :: as the separator of the two elements:
ruby_versions=(
...
5
votes
1answer
115 views
Provide two arguments to one option using getopts
In below code when I give option r then getopts requires one arguments:
while getopts ":hr::l:" opt; do
case $opt in
r ) echo "Run Numbers - argument = $OPTARG " ;;
l ) echo ...
0
votes
1answer
101 views
Trying to access environment variable (array) declared in ~/.profile from shell script
I'm currently fighting with this problem.
I've already read some older posts here on SE, and got the conclusion that the only sane way to put a variable (even an array) is ~/.profile.
So OK, array ...
1
vote
4answers
151 views
How to split text file into records by first non-blank charecter using awk and print only records containing string
I have a text file with information separated in blocks. I would like to separate these blocks into records so that I can handle them separately.
This is my text file (file.txt):
Alarm Stats:
...
1
vote
1answer
57 views
Zsh script how to concatanate array elements with string
I have written a zsh script to automize an analysis in high energy physics and now I would like to use an element of the one of the defined array some string and another element of some another array ...
0
votes
1answer
34 views
Cannot access elements of an array in zsh
I am trying to write a script in zsh and I need to make use of arrays in order to achieve my aim in an elegant way. After reading some information over the Net, I tried to implement and access the ...
0
votes
3answers
276 views
Bad substitution error in zsh shell
Hi in my previous question I got clarity on how to use associative arrays in zsh shell.
But whenever I trigger the following command in my script
for KEY in ${!array[@]} to iterate amongst the keys ...
0
votes
1answer
102 views
typeset -A is giving error in script
I was using associative arrays in my script, hence I used to declare them by the
typeset -A <array_name> command, and it worked fine in the bash prompt
But when I use it in my script, I get ...
2
votes
2answers
78 views
Memory allocation for sparse array in awk
I have searched but didnt reach to any conclusion that when i defined an sparse array does it reserve all the contiguous memory upto maximum index or it allocate the memory at that particular index ...
1
vote
1answer
74 views
How do I add an associative array to a variable from an external ini file?
I'm modifying a simple script to add function and learn more about how to write bash scripts. Currently, the script creates associative arrays using a function:
declare -A site theme
add_site() {
...
0
votes
3answers
182 views
store the command output in an array and print one by one
This is my command:
cat httpd.conf | grep ^LogFormat | awk -F\" '{print $(NF)}'
Output of this:
commonsess
common
or can be any number of values, I need to store these values in an array and ...
0
votes
1answer
3k views
mdadm raid doesn't mount
I have a raid array defined in /etc/mdadm.conf like this:
ARRAY /dev/md0 devices=/dev/sdb6,/dev/sdc6
ARRAY /dev/md1 devices=/dev/sdb7,/dev/sdc7
but when I try to mount them, I get this:
# mount ...
6
votes
1answer
474 views
Delete an array in awk
In awk, I can clear an array with a loop, making it an empty array, which is equivalent to deleting it.
for (key in array) delete array[key];
Is there a simpler way? Can I completely delete an ...
1
vote
1answer
112 views
How can I use global variable arrays in aliases or functions
I am attempting to simplify repetitive work procedures. In doing so, I am trying to write a .bashrc script which will set global path variables that aliases can refer to. Disclaimer: I'm new to linux ...
4
votes
4answers
164 views
Indirection on a Bash array
Is there a possibility to write the following script without the loop?
IPv4_first=1.1.1.1
IPv4_second=2.2.2.2
IPv4_third=3.3.3.3
IPv4_all=()
for var in ${!IPv4_@}
do
IPv4_all+=(${!var})
done
...
1
vote
2answers
353 views
sh + how to use array in sh script in order to print all values in array
I want to use arrays in my sh script.
My target is to create an array with the values a b c and print all values in the array.
I succeeded to print each array, but I failed to print all values in ...
2
votes
4answers
792 views
How to initialize an array using awk and bash?
I am trying to store values of the first line of a text file into an array. Here is what I have so far:
arr_values=()
awk '
NR==1 {
for (i=0; i<=NF; i++)
...
8
votes
2answers
3k views
Array in unix Bourne Shell
I am trying to implement array in Bourne shell (/bin/sh). I found that way to initialize array elements is:
arr=(1 2 3)
But it is encountering an error:
syntax error at line 8: `arr=' unexpected
...
1
vote
1answer
44 views
Bash array declared in a function is not available outside the function
on bash (v4.3.11) terminal type this:
function FUNCtst() { declare -A astr; astr=([a]="1k" [b]="2k" ); declare -p astr; };FUNCtst;declare -p astr
(same thing below, just to be easier to read here)
...
4
votes
1answer
100 views
What is the difference between @ and * when referencing bash array values?
This Bash guide says:
If the index number is @ or *, all members of an array are referenced.
When I do this:
LIST=(1 2 3)
for i in "${LIST[@]}"; do
echo "example.$i "
done
Gives: example.1 ...
0
votes
1answer
726 views
How to do array addition multiplication program in a shell script? [closed]
Write a program arr_calc to perform array addition and array multiplication,
The program takes 4 arguments:
Argument 1: The file name of the input array A
Argument 2: The file name of the input array ...
0
votes
2answers
385 views
Using regex in for loop
I'm looking to loop through a directory of files and match them with regex, then subsitute the appropriate character:
#somefile.txt
%somefile.txt
>somefile.txt
# arr=(\% \> \#) ;for f in *; do ...
1
vote
1answer
53 views
Error when constructing an associative array
I am trying to construct an associative array in bash
#!/bin/bash
declare -A hero_escore
hero_escore=( "Invoker_Anti-Mage : -44"
"Tinker_Nyx Assassin : 32"
"Troll Warlord_Drow Ranger : ...
2
votes
2answers
526 views
Creating an array with IFS set to a different value
I am trying to construct an array and write to a file in this format, i.e. the file's content should be something like this
hero_pairscore=( askdjfh sdf,sdlkfj lksf,dfgdf,dsflkgj,asdlkf ....)
Where ...
0
votes
2answers
111 views
Reversing 1-D array
I'm trying to reverse a 1-D array which contains a list of files. I followed http://stackoverflow.com/questions/13360091/how-to-reverse-array-in-bash-onliner-for-loop
to be the code. But this is not ...
1
vote
2answers
661 views
get arguments passed and put it in an array
is there a way to make the arguments passed become the element of an array?
I want to access those arguments individually through array.
like this:
./script.ksh arg1 arg2 arg3
then it will become ...
2
votes
3answers
225 views
List all word pairs that appear in a line together in a file
How can I use awk to run through a file written as:
Sarah,Masha,Helen
Connor,Jessica,Jennifer,Candace
Betty,Sarah,Helen
John,Harold,Frank,Daisy
and put out all pairs that appeared in a line ...
2
votes
1answer
330 views
What is an array in awk?
I'm very new to unix and am trying to learn basic awk scripting - during which I keep coming across the word "array", and "associative arrays". I have no clue as to what this is, and don't tell me to ...
1
vote
1answer
126 views
Is there a simple way to get array of all arguments that do not begin with a hyphen?
zsh includes a powerful utility for parsing command-line options zparseopts, but for quick shell scripts and shell functions, but is there an easy way to extract the array of all command-line ...
5
votes
2answers
4k views
Associative Arrays in Shell Scripts
I saw a trick for implementing associative arrays in a shell script. For example print array["apples"] could be scripted as echo \$array$key where key=apples.
However, there was no mention of how to ...
1
vote
2answers
54 views
Is this an array?
I'm currently looking at an existing script that have something like this:
variable='val1 val2 val3 val4'
Is this another way of setting an array? If not, what is it?
1
vote
1answer
117 views
Bash Array does not store correctly
I have a problem with my bash array I was trying to read the file however the array allocated it in array[1] instead of 0
#!/bin/bash
index=0
INPUT=BookDB.txt
OLDIFS=$IFS
IFS=:
i=0
book=()
[ ! -f ...
1
vote
1answer
127 views
Count number of elements in an array
I would like to ask if there is a way to count the number of elements in an array in ksh.
3
votes
2answers
171 views
How do you preserve a space in a literal expression in an array value in bash and how to trim down results from a sort command?
In the context of searching for expressions in log files, I was wondering generally if there was a way to quantify and qualify the contents of the logs in /var/log in some way. In particular, does the ...
1
vote
1answer
165 views
Attempt to fake a 2D multidimentional array in bash by storing the array name as string
I am trying to create a structure that will allow me to group data inside an array in bash
Here is what I have tried:
indexes=()
first_element=( value='one' another_value='two' ...
2
votes
2answers
203 views
Bash scripting: Associated Array only recognizes one value when several given
This lines of a Bash (4.0) Script
klang=([string_0]='element_0' [string_1]='element_1' [string_2]='element_2')
echo "${klang[*]}" # should output the all set elements
echo "${#klang[*]}" # ...
1
vote
1answer
418 views
Problem with sed on a array containing strings containing spaces
I have a array looking like this:
array=("(1 2 3) (123)" "2 31 (231)" "4 5 1 (451)" "(te)xt (1234)")
This array is a example. It does not look like this but its structure is the same (the strings ...
6
votes
4answers
2k views
Intersection of two arrays in BASH
I have two arrays like this:
A=(vol-175a3b54 vol-382c477b vol-8c027acf vol-93d6fed0 vol-71600106 vol-79f7970e vol-e3d6a894 vol-d9d6a8ae vol-8dbbc2fa vol-98c2bbef vol-ae7ed9e3 vol-5540e618 ...
0
votes
1answer
146 views
I need Control loop help -
this is what I figured out in sorting an Array that has already had it's elements declared type int
#!/bin/bash
#sorting an "predeclared" array
typeset -i store BigNum
let store=0 BigNum=0
...
0
votes
1answer
2k views
How to reassign new values to array elements?
I'm trying to figure out like three or four things at the same time.The most I need help with is how to get the greatest number in all the files that I have created on a prior run of my script, that ...
-1
votes
1answer
104 views
find not working right
if [[ "$1" == "" ]]
then
leftarray=($(find . -type l -printf "%p\n" 2>/dev/null))
rightarray=($(find . -type l -printf "%l\n" 2>/dev/null))
for var in "${rightarray[@]}"
do
...
