05-27-2015
Hello
justbow,
I have a few to questions pose in response first:-
- Is this homework/assignment? There are specific forums for these.
- What have you tried so far?
- What output/errors do you get?
- What OS and version are you using?
- What are your preferred tools? Is perl required by some other reason? Could we use C, shell, awk, etc.
- What logical process have you considered? (to help steer us to follow what you are trying to achieve)
Most importantly,
What have you tried so far?
There are probably many ways to achieve most tasks, so giving us an idea of your style and thoughts will help us guide you to an answer most suitable to you so you can adjust it to suit your needs in future.
We're all here to learn and getting the relevant information will help us all.
Kind regards,
Robin
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a pattern
username:x:32005:32006::/usr/local/user:/bin/bash
I need to match the line containing username and replace /bin/bash with /usr/local/my/bin/noshell
So it becomes
username:x:32005:32006::/usr/local/user:/usr/local/my/bin/noshell (7 Replies)
Discussion started by: anilcliff
7 Replies
2. Shell Programming and Scripting
Hi How Are you?
I am doing fine!
I need to go now?
I will see you tomorrow!
Basically I need to replace the entire line containing "doing" with a blank line:
I need to the following output:
Hi How Are you?
I need to go now?
I will see you tomorrow!
Thanks in advance.... (1 Reply)
Discussion started by: sags007_99
1 Replies
3. Shell Programming and Scripting
Hi All,
I have a file with data as below:
A,FILE1_MYFILE_20130309_1038,80,25.60
B,FILE1_MYFILE_20130309_1038,24290,18543.38
C,FILE1_dsc_dlk_MYFILE_20130309_1038,3,10.10
A,FILE2_MYFILE_20130310_1039,85,110.10
B,FILE2_MYFILE_20130310_1039,10,12.10... (10 Replies)
Discussion started by: angshuman
10 Replies
4. Shell Programming and Scripting
I have
2013-06-11 23:55:14 1Umexd-0004cm-IG <= user@domain.com
I need sed/awk operation on this, so that it should print the very next pattern only after the the pattern mach <=
ie only print user@domain.com (7 Replies)
Discussion started by: anil510
7 Replies
5. Shell Programming and Scripting
Im using the command below , but thats not the output that i want. it only prints the odd and even numbers.
awk '{if(NR%2){print $0 > "1"}else{print $0 > "2"}}'
Im hoping for something like this
file1:
Text hi this is just a test
text1 text2 text3 text4 text5 text6
Text hi... (2 Replies)
Discussion started by: invinzin21
2 Replies
6. Shell Programming and Scripting
Hello Experts , require help . See below output:
File inputs
------------------------------------------
Server Host = mike
id rl images allocated last updated density
vimages expiration last read <------- STATUS ------->... (4 Replies)
Discussion started by: tigerhills
4 Replies
7. Shell Programming and Scripting
Hi,
I have log like this:
... (1 Reply)
Discussion started by: justbow
1 Replies
8. Shell Programming and Scripting
file:
1|12322|tow|
5|23422|pow|
6|23423|cow|
3|34324|how|
deletelines:
12322
23423
My command to delete line
while read NUM
do
awk -F"\|" '$2 !~ /`"$NUM"`/' file >file.back
mv file.back file
done<deletelines (3 Replies)
Discussion started by: Roozo
3 Replies
9. Shell Programming and Scripting
I am trying to combine lines with these conditions:
1. First line starts with text of "libname VALUE db2 datasrc" where VALUE can be any text.
2. If condition1 is met then continue to combine lines through a line that ends with a semicolon.
3. Ignore case when matching patterns and remove any... (5 Replies)
Discussion started by: Wes Kem
5 Replies
10. Shell Programming and Scripting
My command sed will modify everything in column 3 if i will use the command below. I want to search for a pattern then modify everything in column 3.
sed -i 's/\|165\|/server1/g' file.txt
Input:
01-31-2019 19:14:05|device|165|1548962040165|5c5348f9-0804-1111|file_attach|7271|587|smtp|... (6 Replies)
Discussion started by: invinzin21
6 Replies
LEARN ABOUT SUNOS
readonly
readonly(1) User Commands readonly(1)
NAME
readonly - shell built-in function to protect the value of the given variable from reassignment
SYNOPSIS
sh
readonly [name...]
ksh
**readonly [ name [ = value]...]
**readonly -p
DESCRIPTION
sh
The given names are marked readonly and the values of the these names may not be changed by subsequent assignment. If no arguments are
given, a list of all readonly names is printed.
ksh
The given names are marked readonly and these names cannot be changed by subsequent assignment.
When -p is specified, readonly writes to the standard output the names and values of all read-only variables, in the following format:
"readonly %s=%s
", name, value
if name is set, and:
"readonly $s
", name
if name is unset.
The shell formats the output, including the proper use of quoting, so that it is suitable for reinput to the shell as commands that achieve
the same value and readonly attribute-setting results in a shell execution environment in which:
1. Variables with values set at the time they were output do not have the readonly attribute set.
2. Variables that were unset at the time they were output do not have a value at the time at which the saved output is reinput to the
shell.
On this man page, ksh(1) commands that are preceded by one or two ** (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
ksh(1), sh(1), typeset(1), attributes(5)
SunOS 5.10 17 Jul 2002 readonly(1)