awk loop using array:wish to store array values from loop for use outside loop
Here's my code:
What I would like to do is store each iteration value of the variable snr currently defined as:
to be used in the following line:
So that when it goes through each of the matched ^sta EP values it uses the correct value of the loop to insert into the above line. Does this make sense? Currently, since I'm not sure how to store these values it only retains the last value of the loop, which makes sense because I'm not telling it otherwise. My question is how do I store that value and then call it later in the line above? 'a' is already an array from the match statement, but I'm not sure if I need to make snr also be an array, or what to do. Any help would be greatly appreciated! Thanks in advance!
Last edited by klane; 12-19-2013 at 02:17 PM..
Reason: didn't appear in message
- I m retreving values from database and wish to use those values later in my shell script. I m placing these values in an array da_data but outside loop array is empty.Problem is its treating array as local inside loop hence array is empty outside loop.
Plz go through the script and suggest how... (1 Reply)
I need to do something like this:
for i in 1 2 3 4 5; do
arr=$(awk 'NR="$i" { print $2 }' file_with_5_records)
done
That is, parse a file and assign values to an array in an ascending order relative to the number of record in the file that is being processed on each loop.
Is my... (2 Replies)
Hi everyone:)
I have 2 files - IN & OUT. Example:
IN
A:13:30
B:45:40
.
.
. UNLIMITED
OUT
Z:12:24
Y:20:15
.
.
. UNLIMITED
I want first row of numbers of IN - OUT. Example 13-12 45-20
My code is (2 Replies)
Have built this script, the output is what I needed, but NR 6 is omitted. Why? Is it an error? I am using Gawk.
'{nr=$2;f = $1} END{for (i=1;i<=f;i++) if (nr != i) print i, nr }' input1.csv >output1.csvinput1.csv
1 9
3 5
4 1
7 6
8 5
10 6
output1.csv > with the missing line number 6. 6 is... (5 Replies)
Hello All,
Maybe I'm Missing something here but I have NOOO idea what the heck is going on with this....?
I have a Variable that contains a PATTERN of what I'm considering "Illegal Characters". So what I'm doing is looping
through a string containing some of these "Illegal Characters". Now... (5 Replies)
I have a large file where I want to extract the data by using awk script. I have made a small sample of the input data. I have in the awk script two condition . The first one is to collect the initial time and the second one to collect the end time. I stored the difference between (Time=end-start)... (8 Replies)
array=( 8 5 6 2 3 4 7 1 9 0 )
for i in "${array}"
do
echo $i
done
# i need the output like this by swapping of array values
0
9
1
7
4
3
2
6
5
8 (7 Replies)
I'm trying to achieve the follwoinig with no luck.
Find the directories that are greater than 50GB in size and pick the owner of the directory as I would like to send an alert notification.
du -sh * | sort -rh
139G Dir_1
84G Dir_2
15G Dir_3
ls -l Dir_1
drwx------ 2... (3 Replies)
I have a headerless array of 1000 columns x 100000 rows. The array only contains 4 values; 0/0, 0/1, 1/1, ./.
Here I am showing the 1st 3 rows and columns of the input array
0/0 0/0 1/1
0/1 0/1 0/1
0/0 ./. 0/0
0/0 0/0 0/0
I would like to convert the values in... (9 Replies)
Hello!
I'm making an English to Morse Code translator and I was able to mostly get it all working by looking through older posts here; however, I have one small problem.
When I run it it's just printing spaces for where the characters should be. It runs the right amount of times, and if I try... (3 Replies)
Discussion started by: arcoleman10
3 Replies
LEARN ABOUT OPENDARWIN
foreach
foreach(n) Tcl Built-In Commands foreach(n)
__________________________________________________________________________________________________________________________________________________NAME
foreach - Iterate over all elements in one or more lists
SYNOPSIS
foreach varname list body
foreach varlist1 list1 ?varlist2 list2 ...? body
_________________________________________________________________DESCRIPTION
The foreach command implements a loop where the loop variable(s) take on values from one or more lists. In the simplest case there is one
loop variable, varname, and one list, list, that is a list of values to assign to varname. The body argument is a Tcl script. For each
element of list (in order from first to last), foreach assigns the contents of the element to varname as if the lindex command had been
used to extract the element, then calls the Tcl interpreter to execute body.
In the general case there can be more than one value list (e.g., list1 and list2), and each value list can be associated with a list of
loop variables (e.g., varlist1 and varlist2). During each iteration of the loop the variables of each varlist are assigned consecutive
values from the corresponding list. Values in each list are used in order from first to last, and each value is used exactly once. The
total number of loop iterations is large enough to use up all the values from all the value lists. If a value list does not contain enough
elements for each of its loop variables in each iteration, empty values are used for the missing elements.
The break and continue statements may be invoked inside body, with the same effect as in the for command. Foreach returns an empty string.
EXAMPLES
The following loop uses i and j as loop variables to iterate over pairs of elements of a single list. set x {} foreach {i j} {a b c d e f}
{
lappend x $j $i } # The value of x is "b a d c f e" # There are 3 iterations of the loop.
The next loop uses i and j to iterate over two lists in parallel. set x {} foreach i {a b c} j {d e f g} {
lappend x $i $j } # The value of x is "a d b e c f {} g" # There are 4 iterations of the loop.
The two forms are combined in the following example. set x {} foreach i {a b c} {j k} {d e f g} {
lappend x $i $j $k } # The value of x is "a d e b f g c {} {}" # There are 3 iterations of the loop.
SEE ALSO
for(n), while(n), break(n), continue(n)
KEYWORDS
foreach, iteration, list, looping
Tcl foreach(n)