Good Day,
Im new to scripting especially awk and sed. I just would like to ask help from you guys about a sed command that prints the line immediately after a regexp, but not the line containing the regexp.
sed -n '/regexp/{n;p;}' filename
What if my regexp is 3 word or a sentence. Im... (3 Replies)
Hi,
how can i print the previous, current and next line using sed?
current line is the matching line.
The following prints all lines containing 'Failure' and also the immediate next line
cat $file | sed -n -e '/Failure/{N;p;}'
Now, i also want to print the previous line too.
Thanks,... (8 Replies)
I know this has been asked before but I just can't parse the syntax as explained. I have a set of files that has user information spread out over two lines that I wish to merge into one:
User1NameLast User1NameFirst User1Address
E-Mail:User1email
User2NameLast User2NameFirst User2Address... (11 Replies)
Hello,
Can anybody help me to correct my sed syntax to find the string and print previous two lines and current line and next one line.
i am using string as "testing"
netstat -v | sed -n -e '/test/{x;2!p;g;$!N;p;D;}' -e h
i am able to get the previous line current line next line but... (1 Reply)
Hi guys,
I have found your forum super useful. However, right now I am stuck on a seemingly "simple" thing in AWK. I have two columns of data, the first column in Age (in million years) and the second column is Convergence Rate (in mm/yr).
I am trying to process my data so I can use it to... (2 Replies)
Hello all
According to the following file (orignal one contains 200x times the same structure...) I was wondering if someone could help me to print <byte>??</byte> values
example, running this script/command like
./script.sh xxapp
I would expect as output: 102 116 112
./script.sh xxapp2... (2 Replies)
I want to remove commands having no output. In below text file.
bash-3.2$ cat abc_do_it.txt
grpg10so>show trunk group all status
grpg11so>show trunk group all status
grpg12so>show trunk group all status
GCPKNYAIGT73IMO 1440 1345 0 0 94 0 0 INSERVICE 93% 0%... (4 Replies)
Hi All
I'm trying to extract the line just above a regexp and all lines after this.
I'm currently doing this in two steps
sed -n -e "/^+---/{g;p;}" -e h oldfile.txt > modified.txt
sed -e "1,/^+---/d" -e "/^$/d" oldfile.txt >>modified.txt
Sample
sometext will be here
sometext will be... (3 Replies)
Hi all,
From a while loop I am reading a sorted file where I want to print only the lines that have $1 match and $2 only when the difference from $2 from the previous line is > 30.
Input would be like ...
AN237 010 193019 0502 1 CSU Amoxycillin
AN237 080 ... (2 Replies)
Please help me
print nth line after match
awk or sed one line command. (3 Replies)
Discussion started by: sushma123
3 Replies
LEARN ABOUT SUSE
match
MATCH(1L) Schily's USER COMMANDS MATCH(1L)NAME
match - searches for patterns in files
SYNOPSIS
match [ -option ] pattern [ file ... ]
DESCRIPTION
Match searches the named files or standard input (if no filenames are given) for the occurrences of the given pattern on each line. The
program accepts literal characters or special pattern matching characters. All lines that match the pattern are output on standard output.
You can only specify one pattern string for each match, however, you can construct an arbitrarily complex string. When you do not specify
a file, match can be used as a filter to display desired lines. Standard in is used if no files are specified.
OPTIONS -not, -v
Prints all lines that do not match.
-i Ignore the case of letters
-m Force not to use the magic mode
-w Search for pattern as a word
-x Display only those lines which match exactly
-c Display matching count for each file
-l Display name of each file which matches
-s Be silent indicate match in exit code
-h Do not display filenames
-n Precede matching lines with line number (with respect to the input file)
-b Precede matching lines with block number
REGULAR EXPRESSIONS
The following is a table of all the pattern matching characters:
c An ordinary character (not one of the special characters discussed below) is a one character regular expression that matches that
character.
c A backslash () followed by any special character is a one character regular expression that matches the special character itself.
The special characters are:
! # % * { } [ ] ? ^ $
! Logical OR as in match this!that!the_other. You may have to use `{}' for precedence grouping.
# A hash mark followed by any regular expression matches any number (including zero) occurrences of the regular expression.
? Matches exactly any one character. W? matches Wa, Wb, Wc, W1, W2, W3 ...
* Matches any number of any character.
% Matches exactly nothing. It can be used in groups of ored patterns to specify that an empty alternative is possible.
{} Curly brackets may be used to enclose patterns to specify a precedence grouping, and may be nested. {%!{test}}version matches the
strings testversion and version.
[string]
A non empty string of characters enclosed in square brackets is a one character regular expression that matches any one character in
that string. If however the first character of the string is a circumflex (^), the one character expression matches any character
which is not in the string. The ^ has this special meaning only if it occurs first in the string. The minus (-) may be used to indi-
cate a range of consecutive ASCII characters; for example, [0-9] is equivalent to any one of the digits. The - loses it's special
meaning if it occurs first (after an initial ^, if any) or last in the string. The right square bracket (]) and the backslash ()
must be quoted with a backslash if you want to use it within the string.
^ Matches the beginning of a line.
$ Matches the end of a line. (^*$ matches any entire line)
EXAMPLES FILES
None.
SEE ALSO grep(1), fgrep(1), egrep(1)DIAGNOSTICS NOTES
Even if a match occurs more than once per line, the line is output only once.
Quote special pattern matching characters to prevent them from being expanded by the Command Interpreter.
BUGS
The length of the pattern is currently limited to 100 characters.
This limit is reduced by 38 if the -w option is used.
Joerg Schilling 15. Juli 1988 MATCH(1L)