time(3tcl) Tcl Built-In Commands time(3tcl)__________________________________________________________________________________________________________________________________________________NAME
time - Time the execution of a script
SYNOPSIS
time script ?count?
_________________________________________________________________DESCRIPTION
This command will call the Tcl interpreter count times to evaluate script (or once if count is not specified). It will then return a
string of the form
503 microseconds per iteration
which indicates the average amount of time required per iteration, in microseconds. Time is measured in elapsed time, not CPU time.
EXAMPLE
Estimate how long it takes for a simple Tcl for loop to count to a thousand:
time {
for {set i 0} {$i<1000} {incr i} {
# empty body
}
}
SEE ALSO clock(3tcl)KEYWORDS
script, time
Tcltime(3tcl)
Check Out this Related Man Page
while(3tcl) Tcl Built-In Commands while(3tcl)__________________________________________________________________________________________________________________________________________________NAME
while - Execute script repeatedly as long as a condition is met
SYNOPSIS
while test body
_________________________________________________________________DESCRIPTION
The while command evaluates test as an expression (in the same way that expr evaluates its argument). The value of the expression must a
proper boolean value; if it is a true value then body is executed by passing it to the Tcl interpreter. Once body has been executed then
test is evaluated again, and the process repeats until eventually test evaluates to a false boolean value. Continue commands may be exe-
cuted inside body to terminate the current iteration of the loop, and break commands may be executed inside body to cause immediate termi-
nation of the while command. The while command always returns an empty string.
Note: test should almost always be enclosed in braces. If not, variable substitutions will be made before the while command starts execut-
ing, which means that variable changes made by the loop body will not be considered in the expression. This is likely to result in an
infinite loop. If test is enclosed in braces, variable substitutions are delayed until the expression is evaluated (before each loop iter-
ation), so changes in the variables will be visible. For an example, try the following script with and without the braces around $x<10:
set x 0
while {$x<10} {
puts "x is $x"
incr x
}
EXAMPLE
Read lines from a channel until we get to the end of the stream, and print them out with a line-number prepended:
set lineCount 0
while {[gets $chan line] >= 0} {
puts "[incr lineCount]: $line"
}
SEE ALSO break(3tcl), continue(3tcl), for(3tcl), foreach(3tcl)KEYWORDS
boolean value, loop, test, while
Tclwhile(3tcl)
Hi All,
I have a situation where I need to copy the files having the latest date.
For example I have a file by name bas100e1_jun05. I need to copy it to bas100e1. But when a file by name bas100e1_jul05 is put in the same directory the script should copy the file having the latest month which... (34 Replies)
Matez,
I have a list of process id's in a text file. I want to know how to find the idle time of a process which are more than 300secs and kill them accordingly.
Could you please help me to get these details. I want to write a shell script with this.
Thanks..Krish :) (36 Replies)
Can someone suggest on this script :
let's say the logs files are available for Jan 07, Dec 06, Nov 06, Oct 06
the script should identify the latest months logs, i.e Jan 07
it should then delete anything older than 2 months, which will be logs for Nov 06 & Oct 06. (40 Replies)
All,
I am new to unix and i have the following requirement.
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Could... (35 Replies)
Hi All,
I need to write a UNIX script that automates the sftp process. I should be able to do a sftp to a secure box and get a file from there. I am having a problem doing this because no matter what I do, when I run my script, I get a prompt at command line asking for a password. How could I... (34 Replies)
Every day i ftp tar.gz a file from the production server to a back up machine.. This task creates way to much traffic on the network at the end of the day and puts and undo load on the production machine during operation hours. i would like to create a script that would automatically fire off the... (36 Replies)
Simple question , where did you meet UNIX OS-es.
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I have a few log files which get generated on a daily basis..So, I need to pick only the ones which get generated for that particular day.
-rw-r--r-- 1 staff 510732676 Apr 7 22:01 test.log040711
-rwxrwxrwx 1 staff 2147482545 Apr 7 21:30 test.log.2
-rwxrwxrwx 1 staff 2147482581 Apr 7 19:26... (43 Replies)
I have created this script
#!/bin/sh
FILES=/data/log/access_*.log
for f in $FILES
do
echo "Processing $f file"
cat $f | awk '{print $1}' | sort | uniq -c | sort -n | tail
done
It produces this output
Processing /data/log/access_abc.log file
114 1.1.1.1
167 2.2.2.2
... (38 Replies)
My original files are like this below and I distinguish them from the AP_ID (file1 has 572 and file2 has 544). Also, the header on file1 has “G_” pre-pended. NOTE: these are only snippets of very large files and much of the data is not present here.
Original File 1:
... (36 Replies)