I'm trying to substitute a string with leading zero for all the records except the trailer record using awk command and with variables. The input file test_med1.txt has data like below
And I want to replace 9200 with 09200 and 0401 with 00401
I tried below command but not successfull
Command :
Error:
Please let me know where the command in failing and if it is complete wrong then let me know how to get above output using awk and gsub command
Thanks,
Somaraju
Last edited by Scott; 03-12-2013 at 12:33 AM..
Reason: You forgot to add code tags...
Hi all,
This problem has cost me half a day, and i still do not know how to do.
Any help will be appreciated. Thanks advance.
I want to use a variable as the first parameters of gsub function of awk.
Example:
{
...
arri]=gsub(i,tolower(i),$1)
(which should be ambraced by //)
...
} (1 Reply)
Hello,
I have a variable that displays the following results from a JVM....
1602100K->1578435K
I would like to collect the value of 1578435 which is the value after a garbage collection. I've tried the following command but it looks like I can't get the > to work. Any suggestions as... (4 Replies)
Hi all
I want to do a simple substitution in awk but I am getting unexpected output. My function accepts a time and then prints out a validation message if the time is valid. However some times may include a : and i want to strip this out if it exists before i get to the validation. I have shown... (4 Replies)
Hi,
Can some one please explain the following line please throw some light on the ones marked in red
awk '{print $9}' ${FTP_LOG} | awk -v start=${START_DATE} 'BEGIN { FS = "." } { old_line1=$0; gsub(/\-/,""); if ( $3 >= start ) print old_line1 }' | awk -v end=${END_DATE} 'BEGIN { FS="." } {... (3 Replies)
I want to replace comma with space and "*646#" with space.
I am using the following code:
nawk -F"|" '{gsub(","," ",$3); gsub(/\*646\#/"," ",$3);print}' OFS="|" file
I am getting following error:
Help is appreciated (5 Replies)
Being new to awk, I am still running into little stupid things. For this issues I am trying to search for all occurrences of a string in a file and replace all of those occurrences with a replacement string. I tried doing
awk '{gsub("|750101|", "|000000|", $0)}' infile > outfile
Unix... (3 Replies)
Hey,
I would like to replace a string by a new one. Teh problem is that both strings should be variables to be flexible, because I am having a lot of files (with the same structure, but in different folders)
for i in daysim_*
do
cd $i/5/
folder=`pwd |awk '{print $1}'`
awk '{ if... (3 Replies)
Hi, I want to print the first column with original value and without any double quotes
The output should look like
<original column>|<column without quotes>
$ cat a.txt
"20121023","19301229712","100397"
"20121023","19361629712","100778"
"20121030A","19361630412","100838"... (3 Replies)
Hello, I had some difficulty to understand the gsub function and maybe the regex in this script to remove all the punctuations:
awk 'gsub(//, " ", $0)' text.txtFile text.txt:
This is a test for gsub
I typed this random text file
which contains punctuation like ,.;!'"?/\ etc.
The script... (6 Replies)
Discussion started by: yifangt
6 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)