09-18-2007
If you are going to respond, please try to answer my question instead of asking me why I am doing what I am doing. Obviously, I have a good reason for doing it or I would not be posting this.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I'm using the Bourne shell and trying to write a script that will add all the time that any particular user has been on the network for.
I've used last-h | grep "username" | cut -c 58-62 to get the times.
Then I wrote a script that takes the time and converts it into just minutes.
Now I... (1 Reply)
Discussion started by: jrdnoland1
1 Replies
2. UNIX for Advanced & Expert Users
Hi all,
Looking for a way to add lets say 10 minutes to the current time output should look like 7:15 AM or 7:15 PM. I know that gdate could do this for me but unfortunately its not available on the system I'm working on. So if any one know any way I can accomplish this using the date command it... (7 Replies)
Discussion started by: gptavares
7 Replies
3. UNIX for Dummies Questions & Answers
Hello Everybody,
I have sun machine running Sol9 with ntpq running on it, and I have a network time server, I want to synchronize my sun machine with that time server, is there any way I can add the time server to my sun machine,
root@yuda> ntpq
ntpq> peers
localhost: timed out, nothing... (4 Replies)
Discussion started by: aladdin
4 Replies
4. Shell Programming and Scripting
:confused:
Hi, I posted here before for adding up of datafile name each time, here is an example:
#!/bin/bash
cutdfname="data11.dbf"
newname=$(echo "${cutdfname}" |tr "" "" |tr "#_@-" "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" |tr -s "x")
num=$(echo $newname |cut -d"." -f1|awk... (5 Replies)
Discussion started by: netbanker
5 Replies
5. Shell Programming and Scripting
Hi,
I have a log file with contents like
81.49.74.131 - -
81.49.74.131 - -
116.112.52.31 - -
116.112.52.31 - -
I need an output like this
81.49.74.131 14/Sep/2008 Time duration: 00:06:00
116.112.52.31 15/Sep/2008 Time duration: 00:00:01
Please anyone suggest a script for this.... (1 Reply)
Discussion started by: FuncMx
1 Replies
6. Shell Programming and Scripting
Hi All,
i wanted to add date and time to the file names in the same directory so lets say a file in the directory is test.txt then after running the shell script it should be test-15-11-2010.txt.
So I used the following script which works,
#!/bin/bash
thetime=`date +%Y-%m-%d--%H:%M:%S`... (7 Replies)
Discussion started by: cc_at_work
7 Replies
7. Shell Programming and Scripting
Hello all,
I'm in the process of writing a script, and I need to be able to add columns of time in the following format (time elapsed Net Backup logs):
000:01:03
000:00:58
000:00:49
Does anyone have a way of converting and/or adding timestamps such as these accurately?
Thanks in... (9 Replies)
Discussion started by: LinuxRacr
9 Replies
8. Shell Programming and Scripting
I needed some help in adding a duration (in seconds) to a start time (in hhmmss format) and a start date (in mmddyy format) in order to get an end date and end time. The concept of a leap year is also to be considered while incrementing the day. The code/ function that I have formed so far is as... (3 Replies)
Discussion started by: codehelp04
3 Replies
9. Shell Programming and Scripting
Hello All,
I have a Perl script I'm writing where I ask the user to enter a "start time" for something. The "$start_time" will be in the format of:
# The Time CLI Option Can be in the format of:
--start-time="1day"
--start-time="2hours"
--start-time="45min"
... (1 Reply)
Discussion started by: mrm5102
1 Replies
10. UNIX for Advanced & Expert Users
I have a really old distro (FC7) that I am trying to make compatible with some new hardware (ie. new RAID drivers)...
I put the RAID driver into the ISO so that the installer can detect the RAID set... but post-install (aka: first boot) it appears that the Anaconda-generated initrd does not have... (0 Replies)
Discussion started by: jjinno
0 Replies
eval(3tcl) Tcl Built-In Commands eval(3tcl)
__________________________________________________________________________________________________________________________________________________
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(3tcl), concat(3tcl), error(3tcl), interp(3tcl), list(3tcl), namespace(3tcl), subst(3tcl), tclvars(3tcl), uplevel(3tcl)
KEYWORDS
concatenate, evaluate, script
Tcl eval(3tcl)