10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello geeks, Find below a Perl script am writing to calculate some failure rate in our GPRS network, am just starting to use perl for scripting.
#!/usr/bin/perl
#Script written to calculate the following:
#PDP activation failure rate for every 15 minutes interval
#Number of Active PDP... (1 Reply)
Discussion started by: infinitydon
1 Replies
2. SuSE
Hello,
I'm having trouble looking for info for SUSIE on this CVE-2012-4681.
This is basically the newest Java hit. It is mostly a web browser issue but I would like to see if the versions on our servers are vulnerable. I already found the pages/info for Solaris and RHEL.
Any help would be... (4 Replies)
Discussion started by: bitlord
4 Replies
3. Shell Programming and Scripting
Thanks Bartus11 for your help in the following code to compare the two files "t1" and "t2".
awk 'NR==FNR{a=1;next}$2 in a{print $2}' t1 t2
First can anyone explain that what is the purpose of assigning a =1?
Second, the current script is printing out the matched columns between the... (4 Replies)
Discussion started by: coder83
4 Replies
4. Shell Programming and Scripting
Hi all,
I have a tab-delimited text file in which i have a few columns which look like,
X Y U V
2 3 4 5
4 5 3 4
6 4 3 2
For example, I want to calculate the ratio (X+Y)/(X+Y+U+V) for each row and print the output.
X Y U V ... (3 Replies)
Discussion started by: mehar
3 Replies
5. Shell Programming and Scripting
Hi.. I need to get the following output from the input file like this
INPUT
GRM1 GRM1 0
GRM1 ABC1 1
GRM1 FEQ1 2
GRM1 SED1 3
ABC2 GRM1 0
ABC2 ABC2 1
ABC2 FEQ1 2
ABC2 BED1 3
SED1 SED1 0
SED1 SED1 1
SED1 SED1 2
SED1 ABC1 3
OUTPUT: (7 Replies)
Discussion started by: empyrean
7 Replies
6. UNIX for Dummies Questions & Answers
Hi, I have the following file called addresses, (it is a large file i have only copy and pasted few of the data below) and I am wanting to write a command so it will Find the ratio of mobile (07....) to land line (01....) telephone numbers?
then find the most popular first name and list the... (1 Reply)
Discussion started by: tina_2010
1 Replies
7. IP Networking
Hi,
We have smb client running on two of the linux boxes and smb server on another linux system. During a backup operation which uses smb, read of a file was allowed while write to the same file was going on.Also simultaneous writes to the same file were allowed.Following are the settings in the... (1 Reply)
Discussion started by: swatidas11
1 Replies
8. Shell Programming and Scripting
in the instance of a file compressed with compress to a .Z extension...
how would I, in the Bourne Shell, capture its compression ratio? Gunzip returns -1 and I'd then gone down the track of roughly calculating the ratio (not including time) manually.
Until I found out the Bourne Shell... (7 Replies)
Discussion started by: nortypig
7 Replies
9. UNIX for Dummies Questions & Answers
How do I set X so that it has a 16:9 aspect ratio? I am trying to load it onto a display monitor, the bootloader and comand line run in 16:9 but when x starts it goes to a normal ratio. (0 Replies)
Discussion started by: Winzernotman
0 Replies
10. Solaris
All.
How can i calculate the fragmentation ratio on a mounted disk, given that i have no root privilege and i cannot switch to single user mode. (0 Replies)
Discussion started by: Negm
0 Replies
catch(1T) Tcl Built-In Commands catch(1T)
__________________________________________________________________________________________________________________________________________________
NAME
catch - Evaluate script and trap exceptional returns
SYNOPSIS
catch script ?varName?
_________________________________________________________________
DESCRIPTION
The catch command may be used to prevent errors from aborting command interpretation. The catch command calls the Tcl interpreter recur-
sively to execute script, and always returns without raising an error, regardless of any errors that might occur while executing script.
If script raises an error, catch will return a non-zero integer value corresponding to the exceptional return code returned by evaluation
of script. Tcl defines the normal return code from script evaluation to be zero(0), or TCL_OK. Tcl also defines four exceptional return
codes: 1 (TCL_ERROR), 2 (TCL_RETURN), 3 (TCL_BREAK), and 4 (TCL_CONTINUE). Errors during evaluation of a script are indicated by a return
code of TCL_ERROR. The other exceptional return codes are returned by the return, break, and continue commands and in other special situa-
tions as documented. Tcl packages can define new commands that return other integer values as return codes as well, and scripts that make
use of the return -code command can also have return codes other than the five defined by Tcl.
If the varName argument is given, then the variable it names is set to the result of the script evaluation. When the return code from the
script is 1 (TCL_ERROR), the value stored in varName is an error message. When the return code from the script is 0 (TCL_OK), the value
stored in resultVarName is the value returned from script.
If script does not raise an error, catch will return 0 (TCL_OK) and set the variable to the value returned from script.
Note that catch catches all exceptions, including those generated by break and continue as well as errors. The only errors that are not
caught are syntax errors found when the script is compiled. This is because the catch command only catches errors during runtime. When
the catch statement is compiled, the script is compiled as well and any syntax errors will generate a Tcl error.
EXAMPLES
The catch command may be used in an if to branch based on the success of a script.
if { [catch {open $someFile w} fid] } {
puts stderr "Could not open $someFile for writing
$fid"
exit 1
}
The catch command will not catch compiled syntax errors. The first time proc foo is called, the body will be compiled and a Tcl error will
be generated.
proc foo {} {
catch {expr {1 +- }}
}
SEE ALSO
break(1T), continue(1T), error(1T), return(1T), tclvars(1T)
KEYWORDS
catch, error
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWTcl |
+--------------------+-----------------+
|Interface Stability | Uncommitted |
+--------------------+-----------------+
NOTES
Source for Tcl is available on http://opensolaris.org.
Tcl 8.0 catch(1T)