awk splits up the input line into tokens $1, $2, $3, ... etc.; so for this line
$4 equals the string "1234,".
awk's "sub" function performs a replacement on a target string. So
replaces the comma (in the regex pattern /,/) by zero-length string (2nd argument "") in the target string $4 (which is "1234,"). Thus $4 turns into "1234" which is then printed.
The construct
performs the action <action> only for lines that have the literal "Building" in them.
Hi All,
I have lines like below in a file
A /u/ab/test1.dat
A/u/ab/test2.dat
A /u/bb/test3.dat
A/u/cc/test4.dat
I will need
/u/ab/test1.dat
/u/ab/test2.dat
/u/bb/test3.dat
/u/cc/test4.dat
Pls help
Thanks (6 Replies)
Hi there
I need to grep for a detail from a file. The pattern to search for involves escape sequences in it. This causes for the problem.
grep "P\_SOME\_STRING\_SEARCH" filename
Note, I have line like below in the file and expect it to grep.
select *
from my_system_param
... (3 Replies)
Hi
I am a little stuck using grep. I want to be able to find from a file all lines which have the sequence of characters t, followed by any character, followed by the characters ing.
I have tried looking at the man pages for help, but did not understand it correctly (as it is not the most... (9 Replies)
Alright, here's the deal. I'm running the following ruby script (output follows):
>> /Users/name/bin/acweather.rb -z 54321 -o /Users/name/bin -c
Clouds AND Sun 57/33 - Mostly sunny and cool
I want to just grab the "57/33" portion, but that's it. I don't want any other portion of the line. I... (5 Replies)
I have a file similar to the following
filler filler filler
car 6 mazda
filler filler filler filler
car civic honda
car rav 4 toyota
filler filler
If i do a "grep -i car file.txt" the output would be
car 6 mazda
car civic honda
car rav 4 toyota
however, i want to have the... (4 Replies)
Need Help For GREP
I have a file say g1.txt and content of file is below
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v NoDrives /t REG_DWORD /d 4 /f ,
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v NoClose /t REG_DWORD /d 1 /f ,... (4 Replies)
Hi,
I have a file like this
>hg19_chr1_123_456_+
asndbansbdahsjdbfsjhfghjdsghjdghjdjhdghjjdkhfsdkjfhdsjkdkjghkjdhgfjkhjfkf
hasjgdhjsgfhjdsgfdsgfjhdgjhdjhdhjdfhjdfjgfdfbdghjbfjksdhfjsfdghjgdhjgfdjhgd
jhgdfj
>hg19_chr1_123_456_-... (5 Replies)
Hello folks i have file which is below, i want to extract last column of file that contains dm-21 or dm-13 or dm-N
it show output like
I have tried but i got this (16 Replies)
I am trying to understand what the grep command in ubuntu is trying to do here.
The contents of my test file is given below
harsha@harsha-H67MA-USB3-B3:~/Documents$ cat data
abcd
efghi
jklmno
pqr
stuv
wxyz
When I grep for 3 dots (...) without the parenthesis as follows I would expect the... (4 Replies)
I have a factor program that runs and outputs to stdout all the prime numbers that are specified in the given paramters, in this case 30000000-31000000.
Command:
factor/factor 30000000-31000000
Sample output:
30999979 = 30999979
30999980 = 2^2 5 11 140909
30999981 = 3 10333327... (6 Replies)
Discussion started by: steezuschrist96
6 Replies
LEARN ABOUT OPENSOLARIS
cut
cut(1) User Commands cut(1)NAME
cut - cut out selected fields of each line of a file
SYNOPSIS
cut -b list [-n] [file]...
cut -c list [file]...
cut -f list [-d delim] [-s] [file]...
DESCRIPTION
Use the cut utility to cut out columns from a table or fields from each line of a file; in data base parlance, it implements the projection
of a relation. The fields as specified by list can be fixed length, that is, character positions as on a punched card (-c option) or the
length can vary from line to line and be marked with a field delimiter character like TAB (-f option). cut can be used as a filter.
Either the -b, -c, or -f option must be specified.
Use grep(1) to make horizontal ``cuts'' (by context) through a file, or paste(1) to put files together column-wise (that is, horizontally).
To reorder columns in a table, use cut and paste.
OPTIONS
The following options are supported:
list A comma-separated or blank-character-separated list of integer field numbers (in increasing order), with optional - to indi-
cate ranges (for instance, 1,4,7; 1-3,8; -5,10 (short for 1-5,10); or 3- (short for third through last field)).
-b list The list following -b specifies byte positions (for instance, -b1-72 would pass the first 72 bytes of each line). When -b and
-n are used together, list is adjusted so that no multi-byte character is split.
-c list The list following -c specifies character positions (for instance, -c1-72 would pass the first 72 characters of each line).
-d delim The character following -d is the field delimiter (-f option only). Default is tab. Space or other characters with special
meaning to the shell must be quoted. delim can be a multi-byte character.
-f list The list following -f is a list of fields assumed to be separated in the file by a delimiter character (see -d ); for
instance, -f1,7 copies the first and seventh field only. Lines with no field delimiters will be passed through intact (useful
for table subheadings), unless -s is specified.
-n Do not split characters. When -b list and -n are used together, list is adjusted so that no multi-byte character is split.
-s Suppresses lines with no delimiter characters in case of -f option. Unless specified, lines with no delimiters will be passed
through untouched.
OPERANDS
The following operands are supported:
file A path name of an input file. If no file operands are specified, or if a file operand is -, the standard input will be used.
USAGE
See largefile(5) for the description of the behavior of cut when encountering files greater than or equal to 2 Gbyte (2^31 bytes).
EXAMPLES
Example 1 Mapping user IDs
A mapping of user IDs to names follows:
example% cut -d: -f1,5 /etc/passwd
Example 2 Setting current login name
To set name to current login name:
example$ name=`who am i | cut -f1 -d' '`
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of cut: LANG, LC_ALL, LC_CTYPE, LC_MES-
SAGES, and NLSPATH.
EXIT STATUS
The following exit values are returned:
0 All input files were output successfully.
>0 An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO grep(1), paste(1), attributes(5), environ(5), largefile(5), standards(5)DIAGNOSTICS
cut: -n may only be used with -b
cut: -d may only be used with -f
cut: -s may only be used with -f
cut: cannot open <file>
Either file cannot be read or does not exist. If multiple files are present, processing continues.
cut: no delimiter specified
Missing delim on -d option.
cut: invalid delimiter
cut: no list specified
Missing list on -b, -c, or -f option.
cut: invalid range specifier
cut: too many ranges specified
cut: range must be increasing
cut: invalid character in range
cut: internal error processing input
cut: invalid multibyte character
cut: unable to allocate enough memory
SunOS 5.11 29 Apr 1999 cut(1)