Hi,
I've been charged with the task of finding out whether the scripts which we use on our current DYNIX (Sequent) UNIX box will continue to run happily on our soon-to-be-installed Sun Solaris box.
I'm fairly certain that they'll be OK, but I've heard mutterings about awk running differently... (2 Replies)
File_A contains Strings:
a
b
c
d
File_B contains Strings:
a
c
z
Need to have script written in either sh or ksh. Derive resultant files (File_New_A and File_New_B) from lists File_A and File_B where string elements in File_New_A and File_New_B are listed below.
Resultant... (7 Replies)
Hi
Hope you are having a great weeknd !! I had a question and need your expertise for this :
I have 2 files File1 & File2(of same structure) which I need to compare on some columns. I need to find the values which are there in File2 but not in File 1 and put the Differences in another file... (5 Replies)
I have been living with this problem with GNU sed v4.1.4 for a long time, but now I really need to figure it out.
When using a list in either an address or a search, the expression is matching lower and upper-case letters. works as it should.
For example, if I run
sed -nr "// p"... (7 Replies)
need a one liner to compare 2nd and 3rd field and print values that are not matched in 2nd field
Input
col 2 col 3
1.1.1.1 11.11.11.11
8.8.8.8 0.0.0.0
3.3.3.3 2.2.2.2
7.7.7.7 3.3.3.3
5.5.5.5 1.1.1.1
4.4.4.4
6.6.6.6
9.9.9.9
output
7.7.7.7 ... (12 Replies)
Hi,
I am running a script sample.sh in bash environment .In the script i am using sed and awk commands which when executed individually from terminal they are getting executed normally but when i give these sed and awk commands in the script it is giving the below errors :-
./sample.sh: line... (12 Replies)
Hi togehter!
I would like to write an awk script which prints the first column divided by the sum of the second column:
So if this is my list
1 2
2 1
3 1
4 1
it should print a list like this:
1/5
2/5
3/5
4/5
My idea was to use END like this: (3 Replies)
Not really sure how to accomplish this. If I have two lists with matching columns. Second column is different. I would like to show the differences plus/minus.
list1
device1 5
decive2 10
decive3 10
device4 10
device5 10
device6 20
list2
device1 10
... (1 Reply)
I am trying to find the differences between the two sorted, tab separated, attached files. Thank you :).
In update2 there are 52,058 lines and in current2 there are 52,197 so 139 differences should result.
However,
awk 'FNR==NR{a;next}!($0 in a)' update2 current2 > out2comm -1 -3... (2 Replies)
This seems pretty simple, but I cant figure it out. I get stumped on the simple things.
I am running two commands
1) take a listing a directory of files, and filter out the doc_name (which is in a series of extracted files), and place it in a file.
ls -l | awk '{print $9}' | grep... (5 Replies)
Discussion started by: jeffs42885
5 Replies
LEARN ABOUT CENTOS
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)