04-11-2008
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
test.ksh
===================
#!/usr/bin/ksh
APPLICATION=hr_app
APPLICATION_UPPER=`echo $APPLICATION | tr `
echo $APPLICATION_UPPER > /tmp/test.txt
echo $APPLICATION >> /tmp/test.txt
which tr >> /tmp/test.txt
===================
When I run this from the shell:
/home/natter> more... (6 Replies)
Discussion started by: natter
6 Replies
2. UNIX for Dummies Questions & Answers
hi frnds,
how to make the ssh service to behave as rsh.as we know ssh asks for passwd whereas the rsh doesnt.so how can i perform the followin operation
without being asked for passwd.
lets say i want to run the command "ls" on "remote_terminal"
$ssh remote_terminal ls
the above should work... (1 Reply)
Discussion started by: mxms755
1 Replies
3. Shell Programming and Scripting
Hi , I have a script that compares two string and prints the larger string , This is an extract of a biggers script that i have.
#! /bin/ksh
DT_STRING_CMP=20081221223440
DT_STRING=20071221223440
if ; then
echo "20081221223440"
fi
echo... (5 Replies)
Discussion started by: amit1_x
5 Replies
4. UNIX for Dummies Questions & Answers
hi. i'm trying to create a list users that is formatted for an SQL query. it should take the form:
'user1',
'user2',
'user3'as you can see, there is no comma after the last value. could someone help me revise my code to do this?
while read user; do
print "'"$userid"'," >>... (3 Replies)
Discussion started by: ankimo
3 Replies
5. Solaris
A new x86 server was installed with 16G of memory. The swap space assigned in the prtvtoc is also 16G. But after the installation of the OS and verifying, noticed df -k output for swap shows as 30G. Other systems do not have this characteristic. Whats wrong in here?:eek: (4 Replies)
Discussion started by: incredible
4 Replies
6. Shell Programming and Scripting
hi,
The following mail cmd executed successfully.
mailx -s 'subject' user@company.com < testfile.dat
However When i include this mail cmd in shell script it behave odd. Getting an error message mailx comand not found. (2 Replies)
Discussion started by: zooby
2 Replies
7. Shell Programming and Scripting
I notice that su - user (note with dash) brings in more of the user's environment than does su - user -c 'command'. For example, if root does an su - user, and types "umask" to the prompt, one umask is displayed; yet, if instead the command is su - user -c 'umask', the value is different. I thought... (2 Replies)
Discussion started by: drokerm
2 Replies
8. UNIX for Advanced & Expert Users
This came up a little in another thread. Can someone explain some why awk (I happen to use gawk) behaves as follows:
$ cat file
aaa
$ awk 'BEGIN {print x}' x=1
$ awk x=1 'BEGIN {print x}'
awk: fatal: cannot open file `BEGIN {print x}' for reading (No such file or directory)
$ awk -v... (6 Replies)
Discussion started by: hanson44
6 Replies
9. Shell Programming and Scripting
Hello,
I am firing off some scripts from a main script,
cd B/
./EV_B_m0-m200_hex1.sh &
./EV_B_m0-m200_hex2.sh &
wait
...more
It would be useful to put a bit of time between the two to clean up the output to the terminal.
I think this would work,
cd B/
... (4 Replies)
Discussion started by: LMHmedchem
4 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)