There are files on a remote server with the file name ending in "mm-dd-yy.txt". The script I am running is:
mls "Daily_Service_Text_File_*" /my/local/dir/Filelisting.txt
nawk -F_ -f file.awk /my/local/dir/Filelisting.txt | sort -k1n | cut -f2- | tail -1
It worked up too "12-31-07.txt" but... (3 Replies)
I found this very useful perl script that will check a remote ftp server, search for files of a specific time and get them. When I run the script it works, but it gave me the following error:
Couldn't get filename_12-13-07.txt Bad file number
What in this script would cause this? I know... (2 Replies)
Hi people I am trying to learn this code and see how it relates to the old DOS days. I have a line of code that I am not sure what the first part does. Any help will be greatly appreciated.
It is from a Save command that is used to backup files to a directory.
It goes like this
if ;then... (10 Replies)
Hi,
I have a script at the moment of which reads in simply what the latest version is within a folder i.e. v001, v002, v003 etc and then stores this latest version in a variable i.e. $LATEST would echo v003. I have then cut this string so that I only consider the 003 part. I would then like to... (3 Replies)
I'm reading about command substitutions and came across this little function in my book:
function lsd
{
date=$1
ls -l |grep -i "^.\{42\}$date"|cut -c55-
}
it's a little example which is supposed to select files by modification date, given as an argument to the function.
I... (3 Replies)
I am trying to simplify the coding in a script I was given, but it was written 7-10 years ago and is pretty complicated. below is a tidbit, if someone can break it down for me I would appreciate it.
sub ParseText
{
my ($line, $key, $value, $sub, $script);
foreach $line (@_)... (0 Replies)
I'm going through my bash book and came across this if statment.
if *$)" ]; then
the book says that the grep expression means "an initial dash followed by a digit" (which I understand) "optionally followed by one or more digits" That's the part I can't figure out -- I know the * is a... (8 Replies)
hello,
I would appreciate a little assistance with a process I'm trying to automate. I have several files that are zipped in central location, all follow the same naming conventions i.e (file 1, file 2, etc). what i would like to do is unzip the files and combined them into one file, basically... (2 Replies)
I have a string, eg 7f30.3 and I want to store things in the following way
npos = 7
decform = true
width = 30
ndp = 3
I need to read each character one by one. I am coding in fortran but I can try to code it should answer be given in C in the above way. (2 Replies)
Discussion started by: kristinu
2 Replies
LEARN ABOUT MOJAVE
unset
unset(n) Tcl Built-In Commands unset(n)
__________________________________________________________________________________________________________________________________________________NAME
unset - Delete variables
SYNOPSIS
unset ?-nocomplain? ?--? ?name name name ...?
_________________________________________________________________DESCRIPTION
This command removes one or more variables. Each name is a variable name, specified in any of the ways acceptable to the set command. If
a name refers to an element of an array then that element is removed without affecting the rest of the array. If a name consists of an
array name with no parenthesized index, then the entire array is deleted. The unset command returns an empty string as result. If -nocom-
plain is specified as the first argument, any possible errors are suppressed. The option may not be abbreviated, in order to disambiguate
it from possible variable names. The option -- indicates the end of the options, and should be used if you wish to remove a variable with
the same name as any of the options. If an error occurs, any variables after the named one causing the error are not deleted. An error
can occur when the named variable does not exist, or the name refers to an array element but the variable is a scalar, or the name refers
to a variable in a non-existent namespace.
EXAMPLE
Create an array containing a mapping from some numbers to their squares and remove the array elements for non-prime numbers:
array set squares {
1 1 6 36
2 4 7 49
3 9 8 64
4 16 9 81
5 25 10 100
}
puts "The squares are:"
parray squares
unset squares(1)squares(4)squares(6)
unset squares(8)squares(9)squares(10)
puts "The prime squares are:"
parray squares
SEE ALSO
set(n), trace(n), upvar(n)
KEYWORDS
remove, variable
Tcl 8.4 unset(n)