Just for my own sanity, could you please try the following with your data and let me know how the runtime compares to your script? I get the feeling it should be faster, but maybe all of the processing time is being spent copying files and the time used determining which files to copy doesn't matter...
This User Gave Thanks to Don Cragun For This Post:
Hi All,
I have tried so many command but none work like i wanted.
I would like archive which i assume it will move the files and archive it somewhere.
for example:
if i have a folder and files:
/home/blah/test
/home/blah/hello
/home/blah/foo/bar
i would like to archive folder... (6 Replies)
Hi Friends,
I want a shell script which will move certain .jar files from a specified location (say /publish/content) to (/publish/archive) on every saturday morning 6 am.
One more thing to add is that before moving files it must check free space at (/publish/archive), if it is more than 60 %... (7 Replies)
I'm a novice at unix and need it more and more to do my work.
I seem running into problems getting this script "attempt" to work:
I need to copy all files in a directory, which is containing 22000 files, into a directory one level up. There a tool monitors the content of the dir and processes... (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
I have to move files between file systems but files in new file system must have the same attributes as in old one (privileges, time stamp etc).
Which tool is best :
- ufsdump / ufsrestore
- tar
- cpio
- pax
- dd
- mv
Or maybe there is sth else, you suggest to use.
Thx for help (5 Replies)
Hi,
I'm trying to improve my Unix skills and I'm wondering what is the best way to move some files based on filetype and attributes like time created?
For instance, lets suppose I have a directory with many different files in it and I'd like to move all the jpgs that were created between May... (6 Replies)
I have a directory e2e_ms_xfer/cent01
this contains the multiple files some of which will be named below with unique date time stamps
e2e_ms_edd_nom_CCYYMMDD_HHMM.csv
What I want to do is in a loop
1) Get the oldest file
2) Rename
3) Move it up one level from e2e_ms_xfer/cent01 to... (1 Reply)
If there are 100 files created in a directory /data/ today from 2:00 AM to 10:00 AM
I need to move files older than 3:00 AM to a new directory /hold/
How to do that?
Also, if I have to move files between 3:00 AM to 9:00 AM, how to achieve that (3 Replies)
Hi, everyone
I have a group lists like this (more lines are omitted:
a b c d
E F G H
....
I want to generate all combinations of two elements in each group line. What I expected is this:
a b
a c
a d
b c
b d
c d
E F
E G
E H
F G
F H
G H (8 Replies)
Discussion started by: nengcheng
8 Replies
LEARN ABOUT OSX
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)