03-08-2013
hi busyboy...
That '$$' was a typing mistake.
thanks for the code its working fine....
![Thumbsup Smilie](https://www.unix.com/images/smilies/thumb.gif)
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
how to do that ? I mean only print it but not execute. I'm using putty to interact with ksh.
(in windows cmd up arrow does the job)
thanks
vilius (5 Replies)
Discussion started by: vilius
5 Replies
2. Shell Programming and Scripting
Hello,
I have the following report (report.txt) file (see attached).
I would like to check the file and if the field is error, then showing error message at output.
1. In the report, 1st, 2st and 3nd line can be ignore to check
2. start to check line 4 (each field use "," to split
- 1st... (1 Reply)
Discussion started by: happyv
1 Replies
3. UNIX for Dummies Questions & Answers
Hi All,
I am new to unix scripting, please help me in completing this exercise,
I have a scenario as follows,
1. i have a text file(snapshot.txt) consisting of directory names, and file
size separated by comma as shown below:
snapshot.txt data:
... (1 Reply)
Discussion started by: G.K.K
1 Replies
4. Shell Programming and Scripting
I am trying to write a shell script that will allow the typing of a value, then using that value to replace data in a text file.
I suspect I need sed.
The format of the file is:
Variable1:Value1
Variable2:Value2
The interaction would be something like:
Shell Prompt: "Please enter the... (9 Replies)
Discussion started by: cleanden
9 Replies
5. Solaris
I have a netscape 4.79 browser for our GUI which connects to a Solaris5.8 box. During peek hours, we see question marks appearing in the screen instead of the text we enter. This results in query failure. This problem does not happen always, and is quite irritating because, we have to close the... (6 Replies)
Discussion started by: vanz
6 Replies
6. Shell Programming and Scripting
ok the user can only enter a number if a letter is entered it shouldnt be accepted
This is what i have so far
read -p "How many cars to enter:" cars
until
do
read -p "Invalid number. Please re-enter:" $tags
done (5 Replies)
Discussion started by: gangsta
5 Replies
7. Shell Programming and Scripting
Hello
Does the unix korn shell provide a function to convert number entered in command line argument to text or Character so that in next step i will convert Chr to Hex (6 Replies)
Discussion started by: aadityapatel198
6 Replies
8. Shell Programming and Scripting
Hi Experts,
path=/db/files/
format=$1
User can enter any file format.compare the user file format with actual file format existed in the directory /db/files. User enter all characters as "A" apart from date format.
example1: user will be entering the file format AAA_AA_YYYYMMDD.AAA
Actual... (6 Replies)
Discussion started by: nalu
6 Replies
9. Shell Programming and Scripting
Hello,
I'm looking to check only the first line of a file to see if it is a format string, like
# -*- coding: utf-8; mode: tcl; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -\*- vim:fenc=utf-8:ft=tcl:et:sw=2:ts=2:sts=2if the first line is anything else, insert the above string.
I'd... (3 Replies)
Discussion started by: f77hack
3 Replies
10. Shell Programming and Scripting
hi all,
trying this using shell/bash with sed/awk/grep
I have two files, one containing one column, the other containing multiple columns (comma delimited).
file1.txt
abc12345
def12345
ghi54321
...
file2.txt
abc1,text1,texta
abc,text2,textb
def123,text3,textc
gh,text4,textd... (6 Replies)
Discussion started by: shogun1970
6 Replies
LEARN ABOUT CENTOS
error::pass2
ERROR::PASS2(7stap) ERROR::PASS2(7stap)
NAME
error::pass2 - systemtap pass-2 errors
DESCRIPTION
Errors that occur during pass 2 (elaboration) can have a variety of causes. Common types include:
unavailable probe point classes
Some types of probe points are only available on certain system versions, architectures, and configurations. For example, user-
space process.* probes may require utrace or uprobes capability in the kernel for this architecture.
unavailable probe points
Some probe points may be individually unavailable even when their class is fine. For example, kprobe.function("foobar") may fail if
function foobar does not exist in the kernel any more. Debugging or symbol data may be absent for some types of .function or
.statement probes; check for availability of debuginfo. Try the stap-prep program to download possibly-required debuginfo. Use a
wildcard parameter such as stap -l 'kprobe.function("*foo*")' to locate still-existing variants. Use ! or ? probe point suffixes
to denote optional / preferred-alternatives, to let the working parts of a script continue.
typos There might be a spelling error in the probe point name ("sycsall" vs. "syscall"). Wildcard probes may not find a match at all in
the tapsets. Recheck the names using stap -l PROBEPOINT. Another common mistake is to use the . operator instead of the correct
-> when dereferencing context variable subfields or pointers: $foo->bar->baz even if in C one would say foo->bar.baz.
unavailable context variables
Systemtap scripts often wish to refer to variables from the context of the probed programs using $variable notation. These vari-
ables may not always be available, depending on versions of the compiler, debugging/optimization flags used, architecture, etc. Use
stap -L PROBEPOINT to list available context variables for given probes. Use the @defined() expression to test for the resolvabil-
ity of a context variable expression. Consider using the stap --skip-badvars option to silently replace misbehaving context vari-
able expressions with zero.
GATHERING MORE INFORMATION
Increasing the verbosity of pass-2 with an option such as --vp 02 can help pinpoint the problem.
SEE ALSO
stap(1),
stap-prep(1),
stapprobes(3stap),
probe::*(3stap),
error::dwarf(7stap),
error::inode-uprobes(7stap),
warning::debuginfo(7stap),
error::reporting(7stap)
ERROR::PASS2(7stap)