08-21-2002
korn shell version at runtime?
How can I check what kornshell version I am using at runtime from within a kornshell script?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
well i have this code here..and it works fine in kornshell..
#!/bin/ksh
home=c:/..../
input=$1
sed '1,3d' $input > $1.out
line=""
cat $1.out | while read a
do
line="$line $a"
done
echo $line > $1
rm $1.out
however...now i want it just in normal sh mode..how to convert this?... (21 Replies)
Discussion started by: forevercalz
21 Replies
2. Shell Programming and Scripting
Hi Folks...
I am using a ksh script to submit the at command to run a shell script for immediate execution. The shell script requries 1 parameter.
Command in the script is
at -m -f $EXE_DIR/process_server.sh $START_TIME $DB_NAME
where START_TIME=now and DB_NAME= tnsname of Oracle... (1 Reply)
Discussion started by: island360
1 Replies
3. AIX
How to allocate memory for a shell script on aix box at the time of execution i.e at runtime
Are there any commands for AIX in specific
Thanks in Advance (1 Reply)
Discussion started by: aixjadoo
1 Replies
4. UNIX for Dummies Questions & Answers
How to allocate memory for a shell script on aix box at the time of execution i.e at runtime
Are there any commands for AIX in specific
Thanks in Advance (3 Replies)
Discussion started by: aixjadoo
3 Replies
5. UNIX for Advanced & Expert Users
How to allocate memory for a shell script on aix box at the time of execution i.e at runtime
Are there any commands for AIX in specific
Thanks in Advance (1 Reply)
Discussion started by: aixjadoo
1 Replies
6. Shell Programming and Scripting
hi I am new to shell programming.....my question is while running one of my shell program it stops in between to accept input from the user and proceeds furthur after giving input....I want to know whether I can set this input through some files so that the shell acript reads the input from the... (10 Replies)
Discussion started by: santy
10 Replies
7. Shell Programming and Scripting
Hi All
I have writing a Korn Shell script to execute it on many of our servers. But some servers don't have Korn Shell installed, they use Borne Shell.
Some operations like calculation don't work :
cat ${file1} | tail -$((${num1}-${num2})) > ${file2}
Is it possible to activate Korn Shell... (3 Replies)
Discussion started by: madmat
3 Replies
8. Shell Programming and Scripting
Hi,
I am trying to capture runtime stats of a shell script (c shell). Are there system variables to call? Or should I create a date variable at the start of the script and at the end of the script? I am trying to capture the time if the script stops or ends with error.
Please help.
... (4 Replies)
Discussion started by: CKT_newbie88
4 Replies
9. Homework & Coursework Questions
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Make a bash script that calculates average runtime for the first two scripts you made. The average should be... (17 Replies)
Discussion started by: navlelo
17 Replies
10. Shell Programming and Scripting
Could some one tell me the difference btw Bourne shell and the Kshell? Which is more flexible and reliable in terms of portability and efficiency. When i type the following command ..
$ echo $SHELL
yields me
/bin/sh
Does this tells me that I am in Bourne shell. If yes, how can i get... (6 Replies)
Discussion started by: bobby1015
6 Replies
catch(n) Tcl Built-In Commands catch(n)
__________________________________________________________________________________________________________________________________________________
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. Catch calls the Tcl interpreter recursively to exe-
cute 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 one of the exceptional return codes (see tcl.h for
the definitions of code values). If the varName argument is given, then the variable it names is set to the error message from interpret-
ing 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 +- }}
}
KEYWORDS
catch, error
Tcl 8.0 catch(n)