Hi gurus,
I have this file with blank lines in it.
How do i remove them in shell?
I tried these commands but not working:
sed '/^ *$/d'
or
sed '/^$/d'
Anybody has a better idea pls?
Also there are lines which starts with a single space, how do we remove the space in those lines?... (3 Replies)
Hi,
I am writing a shell script that needs to remove duplicate lines within a file by category.
example:
section a
a
c
b
a
section b
a
b
a
c
I need to remove the duplicates within th category with out removing the duplicates from the 2 different sections (one of the a's in section... (1 Reply)
Hi,
There seems to some hack attempts in my site. I have attached the index page of my site and I need to remove the below lines from the index page. The below lines are at the center of the file.
-->
</style>
<script>E V A L( unescape(... (5 Replies)
hi,,
i hav a file with many lines.i need to remove all lines before a line begginning with a specific pattern from the file because these lines are not required.
Can u help me out with either a perl script or shell script
example:-
if file initially contains lines:
a
b
c
d
.1.2
d
e
f... (2 Replies)
A small question
I have a test.txt file
I have contents as:
a:google
b:yahoo
:
c:facebook
:
d:hotmail
How do I remove the line with :
my output should be
a:google
b:yahoo
c:facebook
d:hotmail (5 Replies)
Hi,
I have a huge file which has Lacs of lines. File system got full.
I want your guys help to suggest me a solution so that I can remove all lines from that file but not last 50,000 lines. I want solution which can remove lines from existing file so that I can have some space left with. (28 Replies)
Please Help (novice to PERL and SHELL scripting)…. Need to create a script which removes all lines in $filename = "cycle_calendar_ftp_out" older than current date – a variable which will be a number of days passed to script. For Ex it will look at the end date which is the last field (4) and... (2 Replies)
Hello everyone,
Although it seems easy, I've been stuck with this problem for a moment now and I can't figure out a way to get it done.
My problem is the following:
I have a file where each line is a sequence of IP addresses, example :
10.0.0.1 10.0.0.2
10.0.0.5 10.0.0.1 10.0.0.2... (5 Replies)
Hello,
I have a SAS code that predominantly has comments line and the real code like below and i want to remove ONLY THE COMMENTS from the code in the single line or spanned across multiple lines.
/********************************************************************
*** This Is a Comment... (4 Replies)
Discussion started by: arooonatr
4 Replies
LEARN ABOUT HPUX
fixman
fixman(1M)fixman(1M)NAME
fixman - fix manpages for faster viewing with man command
SYNOPSIS
alt-path]
DESCRIPTION
The command is a shell script that processes manpages in the directories to unexpand spaces to tabs where possible, and to remove all char-
acter-backspace pairs (which usually exist to cause overstriking or underscoring for printer output). Removal of unnecessary character
sequences improves the speed of man(1), and reduces disk space consumption. The command should be run after using to create formatted,
manpages from unformatted, source files (see catman(1M)).
By default, searches for subdirectories in the following parent directories in the order indicated:
o
o
o
If the environment variable is set, the directory paths specified by are searched instead of the default. See environ(5) for a description
of the environment variable.
The command does not remove duplicate blank lines. Thus, all files remain a multiple of one page (66 lines) long and can still be passed
directly to (see lp(1)). (Note that man(1) normally uses to accomplish this removal.)
To ensure success, should be run by a user who has appropriate privileges. It will take awhile to complete depending on system speed,
load, memory size, etc. As a side-effect, file ownerships and permissions may be changed.
Options
Perform actions based on the given alternate root.
With this option, alt-path will be prepended to all directory paths, including default paths or the paths defined by
EXTERNAL INFLUENCES
Environment Variables
if set, defines the directories to be searched for manpages.
WARNINGS
If the value of is not the same while is running as it was when was run or when manpage files were installed, some files may be missed and
not processed (see catman(1M)).
EXAMPLES
Run fixman from a server to fix the manpages on a diskless under the alternate root
This will fix manpages in directories under:
FILES
Directories containing [compressed]
nroff(1)-formatted versions of manpages
AUTHOR
was developed by HP.
SEE ALSO catman(1M), chmod(1), expand(1), lp(1), man(1), mv(1), sed(1), environ(5).
fixman(1M)