10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I was writing a shell script, where i need to run a command through script and then take input from user and later terminate it. i am not sure how to take input in a proper format immediately after a command.
example: below command line is used to import some data in to database (LDAP)... (3 Replies)
Discussion started by: Mridul17
3 Replies
2. Shell Programming and Scripting
Hi,
Below is my requirement
File1:
svasjsdhvassdvasdhhgvasddhvasdhasdjhvasdjsahvasdjvdasjdvvsadjhv
vdjvsdjasvdasdjbasdjbasdjhasbdasjhdbjheasbdasjdsajhbjasbjasbhddjb
svfsdhgvfdshgvfsdhfvsdadhfvsajhvasjdhvsajhdvsadjvhasjhdvjhsadjahs
File2:
sdh
hgv
I need a command such that... (8 Replies)
Discussion started by: imrandec85
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3. Shell Programming and Scripting
while read myhosts
do
while read discovered
do
echo "$discovered"
done < $LOGFILE | grep -Pi "|" | egrep... (7 Replies)
Discussion started by: SkySmart
7 Replies
4. Shell Programming and Scripting
I need to install a bin file in UNIX which requires user interaction for giving some information like user id , path, sid etc. All these information is stored in a properties file in the same location.
So if i give ./file.bin -f propfile.properties will it install the file taking all the... (1 Reply)
Discussion started by: coolmohere
1 Replies
5. Shell Programming and Scripting
Hi,
I'm working on a script which has to copy multiple files from one server to another server. The list of files that are to be copied is present in a file say input.txt.
vi input.txt
abc.c
welcome.c
new.c
welcome1.c
for ftp'ing a single file say 'new.c' the following code... (2 Replies)
Discussion started by: i.srini89
2 Replies
6. Shell Programming and Scripting
Hi,
I need to query Oracle database for 100 users. I have these 100 users in a file. I need a shell script which would read this User file (one user at a time) & query database.
For instance:
USER CITY
--------- ----------
A CITY_A
B CITY_B
C ... (2 Replies)
Discussion started by: DevendraG
2 Replies
7. Shell Programming and Scripting
Legends,
Please help me to come out of the below Bermuda triangle.
I have four inputs in a shell script: A B C D
Now, If A is passed by user then, B C D will be ignored.
If C is passed by user, then A B D will be ignored.
Regards,
Sandy (11 Replies)
Discussion started by: sdosanjh
11 Replies
8. Shell Programming and Scripting
Hi All,
I am facing a problem while taking input from user in Shell Script. Basically , I want to read a file line by line. And I want to remove certain lines of that file.But before removing those lines , I need to ask the user whether user wants to remove the lines. If user inputs "Yes" , the... (3 Replies)
Discussion started by: swapnil.nawale
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9. UNIX for Dummies Questions & Answers
Hi
I'm currently putting together a script that will grep a set of data for a particular input, specified by the user.
I'm getting myself all tangled up with my Echo's and reads.
What i'm looking to do is get it so that it prompts the user to enter a value (echo) and then uses their input... (5 Replies)
Discussion started by: Great Uncle Kip
5 Replies
10. Shell Programming and Scripting
here's my code:
ls -lt | /usr/bin/egrep `date +"%Y%m%d(05|06|07|08|09|10|11|12|13|14|15|16|17|18|19)"` | \
/usr/bin/egrep -i .dat | /usr/bin/awk '{print $9}' > $LockboxFile1
if ]
then ... (2 Replies)
Discussion started by: sytycd712
2 Replies
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)