Hi everyone,
Having trouble with sed. I searched the board and found some stuff, but still unclear.
I have a file named "userfile" which stores the users info in this form: email:username:password:
I want the user to be able to change their password.
i tried with sed s/oldpass/newpass/g... (2 Replies)
Hi. Does anyone know how to use the sed command to change the special border characters on this .per file. I have to edit about 80 .per files. I need a sed script to change the below 3 and A characters.
ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿
³ Test Islands, Office of Public Health -- WIC... (4 Replies)
I have a text
"abc def ghi"
and I want to get it as
"def abc ghi"
I am using this
echo "abc def ghi" | sed 's/\(*\)\(*\)/\2\1/'
But I am not able to get the output, could anyone help me.
Thanks (9 Replies)
hello
I have this:
sed -e "s/install_location=....../g" -e "s/hostname=....../g" -e "s/server_name=....../y" input.txt
it will display on the screen what have changed. however I want to change file input.txt. Any idea other than doing redirection (>)
thx (2 Replies)
Hi,
I have a file whose structure is like this
7
7
1 2 3 4 5
1 3 4 8 6
1 4 5 6 0
2 6 8 3 8
2 5 7 8 0
5 7 9 4 1
3 8 0 2 2
3 5 6 8
basically first two row tell the number of rows and column but the data following them are not arranged in that format. now i want to create another... (1 Reply)
Hi everyone,
I've got a problem with converting C comments ( /* */ ) into C++ style ( // ) in some source file with sed. So far I've dealt with comments on one line, but I don't know how to convert when it is over multiple lines ...
So I already have something like this:
comments.sed
... (8 Replies)
I'm changing some html code on multiple web pages and I need to match particular phrases but keep some text within each phrase.
E.G. I need to change this line:
<DIV id="heading">Description:</DIV>
into
<span class="hlred">Description:</span><br />
The text "Description:" may... (2 Replies)
Can somebody help me out and provide me with a SED or AWK solution that converts TO_DATE CLAUSE -> TIMESTAMP
I need to keep the PARTION value (HISTORY_20110417) and DATE/TIME value (2011-04-18 00:00:00) the same for every line
PARTITION HISTORY_20110417 VALUES LESS THAN (TO_DATE('... (3 Replies)
I have a file containing numbers in a column like:
10.5
16.3
15.7
2.3
46.8
3.3
.
.
.
and I was wondering if there was a way to make it show up in an array form like:
10.5 2.3
16.3 46.8
15.7 3.3
Let's say I want to make a new column every 100 values. How can I do... (8 Replies)
Hi !
I try to change a time-stamp hh:mm:ss allways to full ten-minutes.
example: 12:51:03 to 12:50:03
sed 's/::/:{0-5}0:/g' file.txt
but it will not work propperly, because the minute-decade will be replaced with the bracket-term {0-5}. Can someone please give me a hint?
Thanks in... (6 Replies)
Discussion started by: IMPe
6 Replies
LEARN ABOUT ULTRIX
egrep
grep(1) General Commands Manual grep(1)Name
grep, egrep, fgrep - search file for regular expression
Syntax
grep [option...] expression [file...]
egrep [option...] [expression] [file...]
fgrep [option...] [strings] [file]
Description
Commands of the family search the input files (standard input default) for lines matching a pattern. Normally, each line found is copied
to the standard output.
The command patterns are limited regular expressions in the style of which uses a compact nondeterministic algorithm. The command patterns
are full regular expressions. The command uses a fast deterministic algorithm that sometimes needs exponential space. The command pat-
terns are fixed strings. The command is fast and compact.
In all cases the file name is shown if there is more than one input file. Take care when using the characters $ * [ ^ | ( ) and in the
expression because they are also meaningful to the Shell. It is safest to enclose the entire expression argument in single quotes ' '.
The command searches for lines that contain one of the (new line-separated) strings.
The command accepts extended regular expressions. In the following description `character' excludes new line:
A followed by a single character other than new line matches that character.
The character ^ matches the beginning of a line.
The character $ matches the end of a line.
A . (dot) matches any character.
A single character not otherwise endowed with special meaning matches that character.
A string enclosed in brackets [] matches any single character from the string. Ranges of ASCII character codes may be abbreviated
as in `a-z0-9'. A ] may occur only as the first character of the string. A literal - must be placed where it can't be mistaken as
a range indicator.
A regular expression followed by an * (asterisk) matches a sequence of 0 or more matches of the regular expression. A regular
expression followed by a + (plus) matches a sequence of 1 or more matches of the regular expression. A regular expression followed
by a ? (question mark) matches a sequence of 0 or 1 matches of the regular expression.
Two regular expressions concatenated match a match of the first followed by a match of the second.
Two regular expressions separated by | or new line match either a match for the first or a match for the second.
A regular expression enclosed in parentheses matches a match for the regular expression.
The order of precedence of operators at the same parenthesis level is the following: [], then *+?, then concatenation, then | and new
line.
Options-b Precedes each output line with its block number. This is sometimes useful in locating disk block numbers by context.
-c Produces count of matching lines only.
-e expression
Uses next argument as expression that begins with a minus (-).
-f file Takes regular expression (egrep) or string list (fgrep) from file.
-i Considers upper and lowercase letter identical in making comparisons and only).
-l Lists files with matching lines only once, separated by a new line.
-n Precedes each matching line with its line number.
-s Silent mode and nothing is printed (except error messages). This is useful for checking the error status (see DIAGNOSTICS).
-v Displays all lines that do not match specified expression.
-w Searches for an expression as for a word (as if surrounded by `<' and `>'). For further information, see only.
-x Prints exact lines matched in their entirety only).
Restrictions
Lines are limited to 256 characters; longer lines are truncated.
Diagnostics
Exit status is 0 if any matches are found, 1 if none, 2 for syntax errors or inaccessible files.
See Alsoex(1), sed(1), sh(1)grep(1)