I need to read list of machines from a file using foreach loop.
I am trying the follwing, but its not reading the list
foreach i (`cat file.lst | awk '{print $1}'`)
ls -l | grep $i
end
here the file file.lst contains list of files
Any idea whats wrong here
Thanks
Krisyet (2 Replies)
Hi all
Is there any way I could set "locale" variables other than writing a C-program using the "setlocale" function? IŽd like to be able to set it from a shell script.
Cheers (3 Replies)
Hi All,
I am facing 'No Match' problem with foreach loop in C shell script.
Initially I tried following grep command showing results properly as shown at the end of the Thread. But foreach command is throwing the error 'No match'.
grep -n Inserted audit_file
foreach insertstr (`grep -n... (0 Replies)
I am scripting in tcsh and here is what I currently have:
foreach group (g1 g2 g3 g4)
set ppl = `cat $group.file.with.list.of.ppl.in.row.format`
set label = 1
@ label += 1
foreach ppls ($ppl)
echo $label >> file
end
end
... (0 Replies)
Hi
I would like foreach to go through a range of numbers 1-365. This input is being read by a compiled fortran program in the same shell script. Let me try an example to clarify
#!/bin/sh
foreach i (1-365)
./data_make program <<EOF
'echo $i'
/data_'echo $i' #output file
I... (10 Replies)
Hi there,
I need some help with a shell script (I'm no sh script expert, but I hope this will explain how I want my script):dir = /home/user/files/
foreach(*.jpg file in $dir) {
tar -cf $file(-.jpg).tar $file;gzip $file(-.jpg).tar
}
mv -f $dir*tar.gz /home/user/pictures/
Thanks for any... (12 Replies)
Hi everybody,
I'm trying to use a foreach command with two lists. The file.txt looks like this:
var1: 100 200 300
var2: 3 6 9
I'm trying to use a foreach command to associate the two variables together. My script looks like this:
#! /bin/tcsh
set a=(`cat file.txt | grep 'var1' | cut -d... (8 Replies)
I am writing a shell script to uncompress files in a directory, then call a Perl script to search the files for given terms, store those terms in a different output file , and compress the output. I get a syntax error with my use of foreach. Below is my script.
#!/bin/csh -fxv
if (!... (2 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Hi,
The problem statement is: I am trying to read line by line from a flat file by using a while loop. The... (9 Replies)
I am working on converting shell to Perl script. In shell we have built in function
trap
Do you know alternative in Perl or actually we don't need it?
Thanks for contribution (3 Replies)
Discussion started by: digioleg54
3 Replies
LEARN ABOUT DEBIAN
foreach
foreach(3tcl) Tcl Built-In Commands foreach(3tcl)__________________________________________________________________________________________________________________________________________________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(3tcl), while(3tcl), break(3tcl), continue(3tcl)KEYWORDS
foreach, iteration, list, looping
Tclforeach(3tcl)