Sponsored Content
Top Forums Shell Programming and Scripting Help reading an input file in KSH Post 302105329 by zilla30066 on Thursday 1st of February 2007 05:45:50 AM
Old 02-01-2007
Thanks for this help.
I was able to use this to do exactly what I needed.

Thanks Again
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Reading Input from File and Duplicates Output

Greetings to all, I would like to read input from a file and make duplications from it with Linux shell. For e.g. Input file ----------- ABC ABB ABA ------------------------------- Output file ------------ ABC ABC ABC ABB ABB (6 Replies)
Discussion started by: noelcantona
6 Replies

2. Shell Programming and Scripting

Script for reading an input file

#!/bin/sh rpt="/export/home/legato/rpt_offsite"/test_eject.tape cat <$rpt while read line do echo $line perform routine done I am trying to read the contents of this file line by line and perform a routine for each line read. The file contents are numbers.. What is wrong with my... (1 Reply)
Discussion started by: gzs553
1 Replies

3. Shell Programming and Scripting

reading from file in ksh

hi, it seems i can read using cat file | while read line but when i tried reading using while read line < myfile then the last line kept on being returned why? thanks (2 Replies)
Discussion started by: JamesByars
2 Replies

4. Shell Programming and Scripting

reading input from a file

I am trying to read input for a C program (that expects input from the user) from a file using the shell command: progname < filename but it seems that the program considers the char '<' as the first input, hence causing an "error" in my program. I checked it with another program and it... (2 Replies)
Discussion started by: nadbar
2 Replies

5. Shell Programming and Scripting

Reading specific contents from 1 input files and appending it to another input file

Hi guys, I am new to AWK and unix scripting. Please see below my problem and let me know if anyone you can help. I have 2 input files (example given below) Input file 2 is a standard file (it will not change) and we have to get the name (second column after comma) from it and append it... (5 Replies)
Discussion started by: sksahu
5 Replies

6. Shell Programming and Scripting

Reading from a File and Using as an Input variable

I need to know how the the string constant from Input File should be read and provide as input data for the script . INPUT FILE CONST VARIABLE myname=/root/dir/syslog/myname1 myname=/root/dir/syslog/myname2 myname=/root/dir/syslog/myname3 urname=/root/dir/syslog/urname1... (6 Replies)
Discussion started by: baraghun
6 Replies

7. Shell Programming and Scripting

awk- reading input file twice

Hello, I've been trying to come up with a solution for the following problem; I have an input file with two columns and I want to print as an output the first column without any changes but for the second column, I want to divide it by its last value. Example input: 1 9 2 10 3 11 4 12 5... (14 Replies)
Discussion started by: acsg
14 Replies

8. UNIX for Dummies Questions & Answers

Help in reading the date from the input file name

Hi, I need to read the date from the input file. The format of the input file is as follows: a_b_c_yyyymmdd.txt I need to read the date(yyyymmdd) part from the name of the input file. Would really appreciate if someone can help me in this regard Thanks a lot. (1 Reply)
Discussion started by: Sunny_teotia
1 Replies

9. UNIX for Dummies Questions & Answers

Reading file and exclude in ksh

I have a text file containing some file names. And I've a directory containing files with different name. I want to do some operaration (deleting) on the files which are NOT listed on the text file. Im using KSH. PLEASE HELP !!!!! Urgent Help!!!!! (2 Replies)
Discussion started by: maheshbabu
2 Replies

10. UNIX for Dummies Questions & Answers

User input while reading from a file

I am not able to capture the user input in this script(bash).There is prompt for user input.Could some one help me capture user input while reading afile? while read line do echo "$i" path1=$line path2=`echo $line|sed s/new_dir/old_dir/` echo "Do you want to replace?";... (4 Replies)
Discussion started by: parijat guh
4 Replies
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)
All times are GMT -4. The time now is 08:37 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy