Under IRIX 6.5, the Bourne shell is named /bin/bsh. I need to redirect output into a file reading loop, and retain values set within the loop based on processing that goes on within the loop for later processing. This code
#!/bin/bsh
k=1
cat file | while read k ; do
echo "$k"
done... (2 Replies)
Can any one let me know like how cn i set an label or number for each function whihc are there in an shells script:
for example
cd /opt/qcom/test/
function1()
function2()
function3()
-------
i ahe a script like this .now i want to count each of this function like 1, 2, 3,............... (3 Replies)
In a bash script, I'm looking for a way to set each matching line of a file into its own variable, or variable array.
As an example, i have a crontab file with several entries:
00 23 * * * /usr/local/bin/msqlupdate -all
00 11 * * * /usr/local/bin/msqlupdate -inc
00 03 * * *... (2 Replies)
Hi, i want to compile a code where fortran calls c . First I compiled C module ,it has pass by gcc. However, after generating .o file. I compiled C and fortran files together by intel fortran and it failed " undefined reference to 'vicerror'". vicerror is a function. I do not know why. (1 Reply)
I am new to PHP and UNIX. I am using Apache to do my testing on a Windows Vista machine.
I am getting this error when I am trying to connect to a web service. I did a search and did not see any posts that pertain to this.
Here is my function:
<?php
function TRECSend($a, $b, $c, $d,... (0 Replies)
I have a shell script I want to run that will set environment variables based on the value of an input variable submitted when the shell script is called. For example:
$ mgenv.sh prod
This would set environment variables for prod
$ mgenv.sh test
This would set environment variables... (1 Reply)
I don't understand noglob.
I have a function:
function no_globb ()
{
set -o noglob
echo "$1"
set +o noglob
echo "$@"
}
When I run the function like this noglobb *.txt
The ouput is:
file01.txt
file01.txt file02.txt file03.txt
Shouldn't it be
*.txt
file01.txt file02.txt file03.txt (1 Reply)
Guys,
May i know how can we de reference the code reference variable.?
my $a = sub{$a=shift;$b=shift;print "SUM:",($a+$b),"\n";};
print $a->(4,5);
How can we print the whole function ?
Please suggest me regarding this.
Thanks for your time :)
Cheers,
Ranga :) (0 Replies)
Hi,
I have a function that is suposed to generate a AWR report:
#-----------------------#
gen_awr()
#-----------------------#
{
sqlplus -s admin/admin@OCEAN11<<ENDOFSQL
define num_days = ''
define report_type = "html"
define begin_snap =$snap1
define end_snap =%snap2
define... (1 Reply)
How to pass the getopts processed variable "${@}" to a function? It contains a list of package names needed in various functions.
Seems the issue I have is due to the order of the script, with the processed "${@}" falling after the unprossed "${@}".
I've been manually parsing options in the... (3 Replies)
Discussion started by: Cody Learner
3 Replies
LEARN ABOUT DEBIAN
eval
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
Tcleval(3tcl)