Yes it is too advanced for a intro course. The requirement is probably only lines that begin with comments and ignore strings that span multiple lines and may contain #
I have two variables to be dynamically defined in my shell script
variable1= myfile.txt
variable2= myfile
The second variable depends on the first ( i mean , it is a part of the first variable) Now, I need to strip out the ".txt" part from the first variable how do i do that in a shell script. (2 Replies)
I have written a shell script and in my script i have a variable
filename=myfile.txt
now, i want another variable to be defined for which i have to strip out the extension fo the file name,
i.e. newvariable= myfile
how do i strip out the ".txt" part from my first variable.
Any kind of help... (4 Replies)
This command gives me just the filename without any extension:
evrvar =`echo filename.tar | sed 's/\.*$//'`
I am trying to make a change to this command... to make it work for... filename.tar.gz to get just the filename....
currently the command gives me filename.tar by removing only gz... I... (9 Replies)
I posted this already in another thread, but was told that I should create a seperate thread for the following question:
How do I strip the extension when the delimiter might occur multiple times in the filename?
For example:
I have 2 files as input for my script.
test.extension... (8 Replies)
Hi all,
I am new to shell scripting.
I have dbf file and I need to convert it into csv file.
OR, can i read the fields from a .dbf file and OR seprate the records in dbf file and put into .csv or txt.
Actually in the .dbf files I am getting , the numbers of fields may vary in very record and... (6 Replies)
I want to create a temp file which is named based on a search string. The search string may contain spaces or characters that aren't supposed to be used in filenames so I want to strip those out.
My thought was to use 'tr' with but the result is the opposite of what I want:
$ echo "test... (5 Replies)
Dear experts,
my problem is pretty tricky.
I want to change a file (see attached input.txt), according to another file (help.txt). The output that is desired is in output.txt. The example is attached.
Note that
-dashes should not be treated specially, they are considered normal characters,... (2 Replies)
Hi all,
I didn't use SED for 20 years and was never an expert. So my current knowledge is about zero. Please be patient with me. I'm neither a native speaker.
I have a huge dictionary file and want the rest of the lines stripped. Everything after (and including) the "/" should be stripped. I... (2 Replies)
Hello Unix Shell Script Experts,
I have a script that would mask the columns in .csv file or .txt file.
First the script will untar the .zip files from Archive folder and processes into work folder and finally pushes the masked .csv files into Feed folder.
Two parameters are passed
... (5 Replies)
Discussion started by: Mahesh G
5 Replies
LEARN ABOUT SUSE
flipdiff
FLIPDIFF(1) Man pages FLIPDIFF(1)NAME
flipdiff - exchange the order of two incremental patches
SYNOPSIS
flipdiff [[-p n] | [--strip-match=n]] [[-U n] | [--unified=n]] [[-d PAT] | [--drop-context=PAT]] [[-q] | [--quiet]] [[-z] | [--decompress]]
[[-b] | [--ignore-space-change]] [[-B] | [--ignore-blank-lines]] [[-i] | [--ignore-case]] [[-w] | [--ignore-all-space]]
[--in-place] diff1 diff2
flipdiff {[--help] | [--version]}
DESCRIPTION
flipdiff exchanges the order of two patch files that apply one after the other. The patches must be "clean": the context lines must match
and there should be no mis-matched offsets.
The swapped patches are sent to standard output, with a marker line ("=== 8< === cut here === 8< ===") between them, unless the --in-place
option is passed. In that case, the output is written back to the original input files.
OPTIONS -p n, --strip-match=n
When comparing filenames, ignore the first n pathname components from both patches. (This is similar to the -p option to GNU patch(1).)
-q, --quiet
Quieter output. Don't emit rationale lines at the beginning of each patch.
-U n, --unified=n
Attempt to display n lines of context (requires at least n lines of context in both input files). (This is similar to the -U option to
GNU diff(1).)
-d pattern, --drop-context=PATTERN
Don't display any context on files that match the shell wildcard pattern. This option can be given multiple times.
Note that the interpretation of the shell wildcard pattern does not count slash characters or periods as special (in other words, no
flags are given to fnmatch). This is so that "*/basename"-type patterns can be given without limiting the number of pathname
components.
-i, --ignore-case
Consider upper- and lower-case to be the same.
-w, --ignore-all-space
Ignore whitespace changes in patches.
-b, --ignore-space-change
Ignore changes in the amount of whitespace.
-B, --ignore-blank-lines
Ignore changes whose lines are all blank.
-z, --decompress
Decompress files with extensions .gz and .bz2.
--in-place
Write output to the original input files.
--help
Display a short usage message.
--version
Display the version number of flipdiff.
LIMITATIONS
This is only been very lightly tested, and may not even work. Using --in-place is not recommended at the moment.
There are some cases in which it is not possible to meaningfully flip patches without understanding the semantics of the content. This
program only uses complete lines that appear at some stage during the application of the two patches, and never composes a line from parts.
Because of this, it is generally a good idea to read through the output to check that it makes sense.
AUTHOR
Tim Waugh <twaugh@redhat.com>
Package maintainer
patchutils 23 January 2009 FLIPDIFF(1)