Is there an option, for cat, head, tail, or is there any way, to display a file from last line to first? For example, my file
looks like this:
aaaa
bbbb
cccc
eeee
and I would like to print or display it like this:
eeee
cccc
bbbb
aaaa
thanks (5 Replies)
Hi, excuse me for my poor english.
My problem is that:
I have a File
i want to add to each line of that file two strings: one at the beginning of the line, one at the ending.
string1="abcd"
string2="efgh"
i want $string1 content $string2 for each line.
Is that possible? (3 Replies)
Hello -
I am running Linux. I want to place a comment char at the beginning of a line in a file. For example:
testvar=`grep username /etc/people
sed -e 's/$testvar/#$testvar/g' /etc/people
I cannot get the above commands to put a comment at the beginning of the line.
Any... (3 Replies)
Hello,
I have a file as follow
a
b
c
c
d
d
e
I would like to write a awk command to insert # from the first occurence of
"c" to the end of the files.
OUTPUT should be like this
a
b
#c (5 Replies)
How can I specify special meaning characters like ^ or $ inside a regex range. e.g
Suppose I want to search for a string that either starts with '|' character or begins with start-of-line character.
I tried the following but it does not work:
sed 's/\(\)/<do something here>/g' file1
... (3 Replies)
Well here goes:
I tried to write a batch file that adds a specific fixed text to each line of an already existing text file.
for the adding text infront of each line I tried this:
for /F "delims=" %%j in (list.txt) do echo.STARTTEXT\%%j >> list.txt
for adding text after each line I... (0 Replies)
How would you do vim copy line and paste at the beginning, middle, and end of another line. I know yy copies the whole line and p pastes the whole line, but on its own separate line. Sometimes I would like to copy a line to the beginning, middle, or end of another line. I would think this would be... (3 Replies)
I need to comment the lines starting with pattern "exclude" or "exclude=". If the work exclude comes at any other part, ignore it. Also, ignore, excludes, excluded etc. Ie only comment the line starting with exclude.
File contents.
exclude
exclude=
hi I am excluded
excludes
excludes=
... (9 Replies)
Hi,
I have a specific requirement to add text at the beginning and end of a plain text file. I tried to use "sed" with '1i' and '$a' flags but these required two separate "sed" commands separated with "|".
I am looking for some command/option to join these two in single command parameter.
... (6 Replies)
Discussion started by: bhupinder08
6 Replies
LEARN ABOUT SUSE
crm_diff
CRM_DIFF(8) [FIXME: manual] CRM_DIFF(8)NAME
crm_diff - identify changes to the cluster configuration and apply patches to the configuration files
SYNOPSIS
crm_diff [-?|-V] [-o filename] [-O string] [-p filename] [-n filename] [-N string]
DESCRIPTION
The crm_diff command assists in creating and applying XML patches. This can be useful for visualizing the changes between two versions of
the cluster configuration or saving changes so they can be applied at a later time using cibadmin.
OPTIONS --help, -?
Print a help message.
--original filename, -o filename
Specify the original file against which to diff or apply patches.
--new filename, -n filename
Specify the name of the new file.
--original-string string, -O string
Specify the original string against which to diff or apply patches.
--new-string string, -N string
Specify the new string.
--patch filename, -p filename
Apply a patch to the original XML. Always use with -o.
--cib, -c
Compare or patch the inputs as a CIB. Always specify the base version with -o and provide either the patch file or the second version
with -p or -n, respectively.
--stdin, -s
Read the inputs from stdin.
EXAMPLES
Use crm_diff to determine the differences between various CIB configuration files and to create patches. By means of patches, easily reuse
configuration parts without having to use the cibadmin command on every single one of them.
1. Obtain the two different configuration files by running cibadmin on the two cluster setups to compare:
cibadmin -Q > cib1.xml
cibadmin -Q > cib2.xml
2. Determine whether to diff the entire files against each other or compare just a subset of the configurations.
3. To print the difference between the files to stdout, use the following command:
crm_diff -o cib1.xml -n cib2.xml
4. To print the difference between the files to a file and create a patch, use the following command:
crm_diff -o cib1.xml -n cib2.xml > patch.xml
5. Apply the patch to the original file:
crm_diff -o cib1.xml -p patch.xml
FILES
/var/lib/heartbeat/crm/cib.xml--the CIB (minus status section) on disk. Editing this file directly is strongly discouraged.
SEE ALSO
???
AUTHOR
crm_diff was written by Andrew Beekhof.
[FIXME: source] 07/05/2010 CRM_DIFF(8)