Hi,
I have a situation where I need to delete multiple files from a folder once I connect to FTP server. I am using ftp script to get the files, number of files always vary from 1 to 100. once I get the files I need to delete all the files downloaded I am making a list of all the files... (4 Replies)
Hey guys,
I'd like to delete all text within a text file without actually deleting the file. Is there a vi command I can do from my prompt without actually going into the file and doing a %d i think it is... to remove all the text inside?
I want to add this to a cron job to erase all the data... (2 Replies)
hallo..i work in c-shell and i want to delete the content of a file without deleting the file itself...commands like
>filename or
echo -n > filename
didn't work....thanks in advance (2 Replies)
I have a directory full of text data files.
Unfortunately I need to get rid of the 7th and 8th line from them all so that I can input them into a GIS application.
I've used an awk script to do one at a time but due to the sheer number of files I need some kind of loop mechanism to automate... (3 Replies)
Hi ,
I want to rename multiple files with their first line bar the first character + the extension .qual. For the example below the filename should read
7180000000987.qual. I have trawled through different threads for 2 days and I don't seem to find anything I can adopt for this task :confused:
... (7 Replies)
Hi,
I have a directory that contains say 100 files named sequencially like input_1.25_50_C1.txt
input_1.25_50_C2.txt
input_1.25_50_C3.txt
input_1.25_50_C4.txt
..
..
..
input_1.25_50_C100.txt
an example of the content in each of the file is:
"NAME" "MEM.SHIP"
"cgd1_10" "cgd1_10"... (9 Replies)
I'm baffled..... the system I work on creates files every Mon-Friday
I'm trying to delete all files older than 30 days old from a Unix prompt, the command I'm using is:
find /directory/ -mtime +30 -exec rm {} \;
however it returns /directory/filename: 644 mode ? (y/n) for every file! ... (1 Reply)
I have a file details.csv and I need to create 5 files in same folder named as details1.csv,details2.csv,details3.csv,details4.csv,details5.csv along with contents of details.csv
Thanks in Advance. (9 Replies)
Hello,
I have a server that I have to ftp files off and they all start SGRD and are followed by 6 numbers.
SGRD000001
SGRD000002
SGRD000003
The script I have will run every 10 mins to pick up files as new ones will be coming in all the time and what I want to do is delete the files I have... (7 Replies)
Dear Experts
my scenario is as follows...
I have one source folder "Source" and 2 target folders "Target_123456" & "Target_789101". I have 2 series of files. 123456 series and 789101 series. Each series has got 3 types of fiels "Debit", "Refund", "Claims".
All files are getting... (17 Replies)
Discussion started by: phani333
17 Replies
LEARN ABOUT MOJAVE
eval
eval(n) Tcl Built-In Commands eval(n)
__________________________________________________________________________________________________________________________________________________NAME
eval - Evaluate a Tcl script
SYNOPSIS
eval arg ?arg ...?
_________________________________________________________________DESCRIPTION
Eval takes one or more arguments, which together comprise a Tcl script containing one or more commands. Eval concatenates all its argu-
ments in the same fashion as the concat command, passes the concatenated string to the Tcl interpreter recursively, and returns the result
of that evaluation (or any error generated by it). Note that the list command quotes sequences of words in such a way that they are not
further expanded by the eval command.
EXAMPLES
Often, it is useful to store a fragment of a script in a variable and execute it later on with extra values appended. This technique is
used in a number of places throughout the Tcl core (e.g. in fcopy, lsort and trace command callbacks). This example shows how to do this
using core Tcl commands:
set script {
puts "logging now"
lappend $myCurrentLogVar
}
set myCurrentLogVar log1
# Set up a switch of logging variable part way through!
after 20000 set myCurrentLogVar log2
for {set i 0} {$i<10} {incr i} {
# Introduce a random delay
after [expr {int(5000 * rand())}]
update ;# Check for the asynch log switch
eval $script $i [clock clicks]
}
Note that in the most common case (where the script fragment is actually just a list of words forming a command prefix), it is better to |
use {*}$script when doing this sort of invocation pattern. It is less general than the eval command, and hence easier to make robust in |
practice. The following procedure acts in a way that is analogous to the lappend command, except it inserts the argument values at the
start of the list in the variable:
proc lprepend {varName args} {
upvar 1 $varName var
# Ensure that the variable exists and contains a list
lappend var
# Now we insert all the arguments in one go
set var [eval [list linsert $var 0] $args]
}
However, the last line would now normally be written without eval, like this: |
set var [linsert $var 0 {*}$args] |
SEE ALSO
catch(n), concat(n), error(n), interp(n), list(n), namespace(n), subst(n), tclvars(n), uplevel(n)
KEYWORDS
concatenate, evaluate, script
Tcl eval(n)