Bash for loop with arrays second variable?


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Bash for loop with arrays second variable?
# 1  
Old 08-20-2014
Bash for loop with arrays second variable?

I am fairly new to bash and am not sure how to resolve this:

I have a series of geographical long/lat points eg. 50/-30 listed on separate lines in a file called junk2. I have input these into an array and am then using that array in a for loop. Towards the end of the loop I create a file called profile$NUMBER. For each loop I wish to name the profile "profile1" for the first loop, then "profile2" for the second loop, ie. have $NUMBER increase by 1 each time, but how can I do this?

I have the following code so far:

Code:
# !/bin/bash/
array=()

# Read the file in parameter and fill the array named "array"
getArray() {
    i=0
    while read line # Read a line
    do
        array[i]=$line # Put it into the array
        i=$(($i + 1))
    done < $1
}

getArray "junk2"

# Print the file (print each element of the array)
getArray "junk2"
for e in "${array[@]}"
do
    project -C$e -A145 -G0.01k -L-2500/2500 -Q > junk3
    
    cat junk3 | grdtrack -GSWIR_bath.grd > junk4
    cat junk4 | grdtrack -GSWIR_grav.grd > junk5
    cat junk5 | grdtrack -Gnonairyisotopo2.grd > junk6
    cat junk6 | grdtrack -Gmarion_mask.grd >profile$NUMBER.xydzgim
    
    echo "Ridge location $e done"
done

Many thanks Smilie
Lily
# 2  
Old 08-20-2014
Code:
# Print the file (print each element of the array)
NUMBER=1
getArray "junk2"
for e in "${array[@]}"
do
    project -C$e -A145 -G0.01k -L-2500/2500 -Q > junk3
    
    cat junk3 | grdtrack -GSWIR_bath.grd > junk4
    cat junk4 | grdtrack -GSWIR_grav.grd > junk5
    cat junk5 | grdtrack -Gnonairyisotopo2.grd > junk6
    cat junk6 | grdtrack -Gmarion_mask.grd >profile$NUMBER.xydzgim
    
    echo "Ridge location $e done"
    ((NUMBER+=1))
done

This User Gave Thanks to in2nix4life For This Post:
# 3  
Old 08-20-2014
Duh, why didn't I think of that! I was thinking of complicated answers using if and for.

Massive thank you! Smilie
# 4  
Old 08-20-2014
Occam's Razor....

The simplest answer is usually the right one...Smilie
# 5  
Old 08-20-2014
Without UUOC
Code:
project -C$e -A145 -G0.01k -L-2500/2500 -Q > junk3
< junk3 grdtrack -GSWIR_bath.grd > junk4
< junk4 grdtrack -GSWIR_grav.grd > junk5
< junk5 grdtrack -Gnonairyisotopo2.grd > junk6
< junk6 grdtrack -Gmarion_mask.grd >profile$NUMBER.xydzgim

The temp files are good for debugging. If not needed, use pipes
Code:
project -C$e -A145 -G0.01k -L-2500/2500 -Q |
grdtrack -GSWIR_bath.grd |
grdtrack -GSWIR_grav.grd |
grdtrack -Gnonairyisotopo2.grd |
grdtrack -Gmarion_mask.grd >profile$NUMBER.xydzgim

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Bash Variable scope - while loop while reading from a file

Cope sample1: test.sh i=0 echo " Outside loop i = $i " while do i=$(( $i + 1)) echo "Inside loop i = $i " done echo " Out of loop i is : $i " When run output : Outside loop i = 0 Inside loop i = 1 Inside loop i = 2 Inside loop i = 3 Inside loop i = 4 Inside loop i = 5 Inside... (8 Replies)
Discussion started by: Adarshreddy01
8 Replies

2. UNIX for Beginners Questions & Answers

How do I assign the output of a command to a variable within a loop in bash?

In the else of the main if condition . else set lnk = $(readlink -f <path> | cut -d '/' -f7) echo "$lnk" if ] When I run the above on command line , the execution seems to be fine and I get the desired output. But when I try to assign it to a variable within a loop... (12 Replies)
Discussion started by: sankasu
12 Replies

3. Shell Programming and Scripting

Bash variable available for use outside loop

In the below for loop, I extract a variable $d which is an id that will change each time. The bash executes the problem that I am having is that p (after the done) is the path with the extracted $d. However, I can not use it in subsequent loops as it is not reconized. I have been trying to change... (3 Replies)
Discussion started by: cmccabe
3 Replies

4. Shell Programming and Scripting

Multiple arrays in variable using for loop

Hi, I'm trying to get the number of files inside same kind of folders on each disks and assigning each values in to a variable named with same folder and disk name so that it'll be easy for me to identify each time.But somehow I'm not able to assign those values in that specific name variable... (1 Reply)
Discussion started by: ratheeshp
1 Replies

5. Programming

Global variable in for loop (BASH)

Hello, I'm trying to read the variable "pause" from a for loop without luck. The function is dependant on the outcome of the test within the loop. If i run this, pause is always 0 within the function. Any ideas? Thanks. pause=0 users=1 (for (( ; ; )) do speed=`cat speed.log` ... (7 Replies)
Discussion started by: shadyuk
7 Replies

6. Shell Programming and Scripting

Detail on For loop for multiple file input and bash variable usage

Dear mentors, I just need little explanation regarding for loop to give input to awk script for file in `ls *.txt |sort -t"_" -k2n,2`; do awk script $file done which sorts file in order, and will input one after another file in order to awk script suppose if I have to input 2 or... (4 Replies)
Discussion started by: Akshay Hegde
4 Replies

7. UNIX for Dummies Questions & Answers

Help with 3 variable bash loop

Hi all! I think someone might be able to solve my problem pretty easily. I am trying to run a bash loop with 3 variables. I know how to do: for var1 in `cat list1`; do for var2 in `cat list2`; do for var3 in `cat list3`; command var1 var2 > var3; done; done; done However, this will run all... (4 Replies)
Discussion started by: torchij
4 Replies

8. Shell Programming and Scripting

(BASH) Using a loop variable to grep something in a file?

Hi, I have a loop running until a variable L that is read previously in the full script. I'd like to grep some information in an input file at a line that contains the value of the loop parameter $i. I've tried to use grep, but the problem is nothing is written in the FILE files. It seems grep... (5 Replies)
Discussion started by: DMini
5 Replies

9. Shell Programming and Scripting

does bash have arrays that i can push into and run a for loop against?

Hi I have a bash script where i need to push some values into an array and when finished, run a for loop against that array for example myfile sausages|meat beef| meat carrot| veg ... ... for LINE in `cat myfile`; do FOOD=`echo $LINE | cut -d\| -f1` TYPE=`echo $LINE | cut... (4 Replies)
Discussion started by: rethink
4 Replies

10. Shell Programming and Scripting

bash and ksh: variable lost in loop in bash?

Hi, I use AIX (ksh) and Linux (bash) servers. I'm trying to do scripts to will run in both ksh and bash, and most of the time it works. But this time I don't get it in bash (I'm more familar in ksh). The goal of my script if to read a "config file" (like "ini" file), and make various report.... (2 Replies)
Discussion started by: estienne
2 Replies
Login or Register to Ask a Question