Hello everyonel,
I have an array set like so
num=4
read name
arr=name
I go through while loop to assign different values to different array element from 1 to 4. when I try to access the FIRST element of the array I get the last one first. Like if I say ${arr} it will show the last element... (4 Replies)
Greetings,
DISCLAIMER: My shell scripting is rusty so my question may be borderline stupid. You've been warned.
I need to create a script that a) lists the content of zip files in a directory and b) sends out an `exception` report. My ZIP files contain a control file (for load check). I want... (2 Replies)
I need to remove an element from the below array variable TABLENAME.
#!/bin/ksh
set -A TABLENAME "mirf roxar keke mirs"
echo "the array is ${TABLENAME}"
If i need to remove say keke and have the final TABLENAME as below, how this could be achieved. Pls throw some light.
echo "Modified... (3 Replies)
I am trying to take all the elements of an array and multiply them by 2, and then copy them to a new array. Here is what I have
i=0
for true in DMGLIST
do
let DMGSIZES2="${DMGSIZES}"*2
let i++
done
unset i
echo ${DMGSIZES2}
It does the calculation correctly for the first element,... (7 Replies)
Hi,
I have:
# Initialize variables
#!/usr/bin/ksh
FILENM=$1
INDEX=0
# read filename
echo "You are working with the Config file: $FILENM"
while read line
do
echo $line
data=$line
((INDEX=INDEX+1))
done <"$FILENM" (3 Replies)
Hello to all,
I'm trying to separate the string "str" using a regex within match function.
The substrings that I want to separate, begin with 22, 23, 24 or 25 and followed by 12 or 14 characters. And I want to
replace 22 with MJS, 23 with UYT, 24 with WER and 25 with PIL.
For this string... (4 Replies)
This question is for someone that's more familiar with Array Element.
I need to know if the maximum array element that can be assigned is 1024 and if its so, Is there a workaround solution when the counter exceeded 1024?
param_array="$param_nam"
counter=$counter+1
#to avoid space... (3 Replies)
Ya, I know, who in this day and age is mirroring rootvg...?
But yes, my shop does and I need to script checking for it.
I also know I could just inverse the the logic and call the LV mirrored
if the LPs and PPs were not equal. But I want to do the math in the if test
and also know I could... (5 Replies)
Discussion started by: gtsonoma
5 Replies
LEARN ABOUT MOJAVE
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
This loop prints every value in a list together with the square and cube of the value:
set values {1 3 5 7 2 4 6 8} ;# Odd numbers first, for fun!
puts "Value Square Cube" ;# Neat-looking header
foreach x $values { ;# Now loop and print...
puts " $x [expr {$x**2}] [expr {$x**3}]"
}
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)