Alternatively modifying your script to use a "while" not a "for" loop. There is never a reason to use a "for" loop with an open-ended list.
Also corrected various syntax anomalies. Note that "cut" either takes input from a pipeline or a file (in this case we need to use "echo" to get the record onto a pipeline).
I have a problem with my loops. I have a file called users.dat, it has all the users in it. Then I extracted a list of users sending out number of mails with date from Netscape logs. The extracted list (mailuse.dat) has 3 fields: username, number of mails, date. (One user can show up several... (2 Replies)
Hi All,
I am having trouble through, I am reading the input from tab delimited file containing several records,
e.g.
line1 field1 field2 field3 so on..
line2 field1 field2 field3 so on..
..
..
on the basis of certain fields for each record in input file, I have to retrieve... (1 Reply)
Hello folks,
I have to (e)grep out a certain pattern e.g. <TAG1> from a huge log file which does not have any space as such.
The thing is that once I have 'grep'ed out the <TAG1> from the file I need to extract the content within the tags, i.e,
<TAG1>Data_To_Be_Extracted</TAG1>
The underlined... (9 Replies)
I have a function "MyPrint" that runs great on a file (BaseData.txt) that has one line of data. If i add rows to the text file it's reading the tFile variable becomes a list of every field 2 in the file. To correct this, i tried to call the function from a loop where i read one line at a time and... (4 Replies)
not sure how to do it. wan't to delete it using cut and grep ince i would use it in the shell.
but how must the command be?
grep "64.233.181.103 wwwGoogle.com" /etc/hosts | cut -d
the delimeter is just a space. can you help meplease. :D (1 Reply)
I don't know if I described this right, but I am new to scripting and this is giving me a little bit of trouble, but I will explain what I am trying to do.
Each time this is run, I want it to grab and save ls -l /home to data.txt.
ls -l /home > data.txt
Now the part I am getting confused... (4 Replies)
Hello,
I am trying to create a matrix of 0's and 1's depending on whether a gene and sample name are found in the same line in a file called results.txt. An example of the results.txt file is (tab-delimited):
Sample1 Gene1 ## Gene2 ##
Sample2 Gene2 ## Gene 4 ##
Sample3 Gene3 ... (2 Replies)
Dear All,
I have problem with generalizing my code and I can't see where the problem is.
I have a main.txt file that has all the information and then I have 4 folders (headoffice, branch, management, office) that each have a 2 of files keep.txt and throw.txt and each of them have few lines... (3 Replies)
Hi Everyone,
I have a very simple problem and i am stuck in that from last 8 days. I tried many attempts, googled my query but all in vain.
I have a text file named "test.txt"
In that suppose i have contents like:
Java:
1 Object oriented programming language
2 Concepts of Abstraction... (5 Replies)
Hello,
I have a problem with the /etc/rc.d/init.d script to automatically update STEAM GAME ARK. I've converted 3 scripts into one, but something does not work correctly ...
The problem is in the file latestavailableupdate.txt / line 36/39. It think the problem is with script, it wrongly... (2 Replies)
Discussion started by: kshishu
2 Replies
LEARN ABOUT SUNOS
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
indicate 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 (use-
ful 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 5.10 29 Apr 1999 cut(1)