sed "/$titlesearch/d" movielist
will delete any line in the file movielist that matches $titlesearch, but this is only a screen print correct ?
how can I have sed to actually delete the line from the file so that it doesnt appear next time I open the file ?
thanks
Steffen (8 Replies)
Can any one help me how the sed delete only first line command (D) works.
sed -f sedcmds File.txt
In this how the sed delete only first line command (D) works to delete the blank lines appearing more than ones leaving only one blank and deleting others blanks.
While doing step by step when... (2 Replies)
I want to delete a line between selected lines using sed:
e.g. : Between "bus" to "pins", delete lines conaining "signal" word.
Input :
bus
direction
signal new
signal old
pins
signal ok
end
Desired Output:
bus
direction
pins
signal
end (4 Replies)
HI,
Im using the below commmand to delete lines having "(" at the start of a line.
sed -e '/^(/d'
But i need a command to delete lines that has only "(" in it and no other strings.
infile -
asdf
asdf
( asdf
(
asd
outfile (1 Reply)
Hello,
I want to delete all lines with given string in file1 and the string val is dynamic.
Can this be done using sed command.
Sample:
vars="test twinning yellow"
for i in $vars
do
grep $i file1
if
then
echo "Do Nothing"
else
sed `/$i/d` file1
fi
done
Using the above... (5 Replies)
I have a large data file that I need to edit. There are lines like,
> <IDNUMBER> (ST000002)
> <SUPPLIER> (ST000002)
> <IDNUMBER> (ST000004)
> <SUPPLIER> (ST000004)
and I need to delete everything after the >, excepting the end of line.
> <IDNUMBER>
> <SUPPLIER>
> <IDNUMBER>
> ... (4 Replies)
Ultimate goal is to delete lines from before and after a block of lines in a given file. First attempt was something like this:
sed -e '1,/STARTUP/ d' inputfile.txt > outputfile.txt
but that deleted everything down to and including the line with STARTUP. I need to delete everything before... (6 Replies)
here is what i want to achieve.. i have a file with below contents
cat fileName
blah blah blah
.
.DROP this
REJECT that
.
--sport 7800 -j REJECT --reject-with icmp-port-unreachable
--dport 7800 -j REJECT --reject-with icmp-port-unreachable
.
.
.
more blah blah blah
--dport 3306... (14 Replies)
Hi Everyone,
I have an unusual requirement. Here is where i am stuck for sometime now...
I have this text file.. lets say .. output.sql...
it has lot of entries... here below is part of the entry...
.. . . . . . . . . . . . . . . . .... (3 Replies)
Sed command to replace a line in a file using line number from the output of a pipe.
Is it possible to replace a whole line piped from someother command into a file at paritcular line...
here is some basic execution flow..
the line number is 412
lineNo=412
Now i have a line... (1 Reply)
Discussion started by: vivek d r
1 Replies
LEARN ABOUT ULTRIX
re_comp
regex(3) Library Functions Manual regex(3)Name
re_comp, re_exec - regular expression handler
Syntax
char *re_comp(s)
char *s;
re_exec(s)
char *s;
Description
The subroutine compiles a string into an internal form suitable for pattern matching. The subroutine checks the argument string against
the last string passed to
The subroutine returns 0 if the string s was compiled successfully; otherwise a string containing an error message is returned. If is
passed 0 or a null string, it returns without changing the currently compiled regular expression.
The subroutine returns 1 if the string s matches the last compiled regular expression, 0 if the string s failed to match the last compiled
regular expression, and -1 if the compiled regular expression was invalid (indicating an internal error).
The strings passed to both and may have trailing or embedded newline characters; they are terminated by nulls. The regular expressions
recognized are described in the manual entry for given the above difference.
Diagnostics
The subroutine returns -1 for an internal error.
The subroutine returns one of the following strings if an error occurs:
No previous regular expression
Regular expression too long
unmatched (
missing ]
too many () pairs
unmatched )
See Alsoed(1), ex(1), egrep(1), fgrep(1), grep(1)regex(3)