How to check if the file contains only numeric values Post: 302344736

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1. Shell Programming and Scripting

Replace spaces with 0's having numeric values.

What could be the regular expression with gsub function in awk to replace all numerics having spaces before to be replaced with 0s?

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stripping out non-numeric values in a list

hi all, i'm very new to scripting and have the folllowing issue. I have used a few commands to get a list of numbers, but I need to strip away the non-numeric ones, and then need a total of all values. any ideas? root@unixserver # cat myfile | awk '{print $8}'| sort -rn 1504 1344 896 704...

3. Programming

numeric values ending in 'U'

I am getting back on the C++ programming after many years away. I recently received an SDK that has code like this where numeric values end in 'U'. What does this mean? if ((ptr % 16U) == 0U) return buffer;

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PERL:How to convert numeric values txt file to PACKED DECIMAL File?

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How to check if a column is having a numeric value or not in a file?

Hi, I want to know, how we find out if a column is having a numeric value or not. For Example if we have a csv file as ASDF,QWER,GHJK,123,FGHY,9876 GHTY,NVHR,WOPI,623,HFBS,5386 we need to find out if the 4th and 6th column has muneric value or not. Thanks in advance Keerthan

6. Shell Programming and Scripting

how to grep only particular length of numeric values

hi i have two types of file 1. temp.0000000001.data (10 digit numeric) 2. temp.000000001.data (9 digit numeric) i want to search a file which is having 10 digit numeric in between the file name. i use command like this.. ls | grep temp.^*.data but this will give both the files as...

7. Shell Programming and Scripting

Check values in file

Hi, I have a tab delimited file in which first row is the header and others rows has the values. A B C D 2 4 0.00 3.00 0.00 9.78 4654 898 I have to check whether all the values are zero. A B C D 0.00 0 0.00 0.00 0.00 0.00 0 0.000 Send mail if all the values in file are zero

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How to check for a Numeric Value?

Using shell, I have a variable, how can I check that variable for a numeric value such as "41.0"? My program needs to do one things if the numeric value is found, and another if something else such as a string of letter is found. is there a specific character that denotes a numeral? The...

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Use AWK to check for numeric values? (BASH script)

Hi, I'm quite new to scripting, but know a few AWK statements. I have the following line in my script: hostname=`echo $file | awk 'BEGIN{FS=OFS="."}{$NF=""; NF--; print}'` I use this in my script to rename files, which are similar to this: name.mvkf.mkvfm.mkfvm.1 To the...

10. UNIX for Beginners Questions & Answers

Replace a numeric values in a certain column

Hi All, I am trying to replace a certain value from one place in a file . In the below file at position 35 I will have 8 I need to modify all 8 in that position to 7 I tried awk '{gsub("8","7",$35)}1' infile > outfile ----> not working sed -i 's/8/7'g' infile --- it is replacing all...

LEARN ABOUT CENTOS

cpu

CPU(8)                                                        System Manager's Manual                                                       CPU(8)

NAME

       cpu - A tool for user and group administration

SYNOPSIS

       cpu [OPTIONS]

DESCRIPTION

       CPU is a tool for user administration, that was initially based on FreeBSD's pw(8). This tool will allow you to administer users and groups
       on several different backends currently including LDAP and flat files. Please see the website http://cpu.sourceforge.net for more  informa-
       tion, or help improve the man page.

OPTIONS

       There are two kinds of options; options for CPU and options for CPU modules.  There are only four options for CPU, they are as follows:

       -C configfile, --config configfile
              The configuration file to be used by CPU. The options in this file are used for CPU modules.

       -h, --help
              Display help for CPU. If specified in conjunction with the -m option the help for that particular module is displayed.

       -M method, --method=method
              This  is  the method of administration. Current options are ldap or passwd (passwd is not yet working). This can be specified in the
              configuration file.

       -V, --version
              Display the version of the software.

SEE ALSO

       cpu.conf(5) cpu-ldap(8)

AUTHORS

       Blake Matheny <bmatheny@purdue.edu>

       The current version of this software is always availabe at http://cpu.sourceforge.net

BUGS

       To report a bug or problem, please e-mail:

       cpu-users@lists.sourceforge.net

TODO

       See TODO file that accompanied software. Please e-mail us with any additional suggestions.

                                                                 17 February 2003                                                           CPU(8)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Replace spaces with 0's having numeric values.

Discussion started by: videsh77

2. Shell Programming and Scripting

stripping out non-numeric values in a list

Discussion started by: badoshi

3. Programming

numeric values ending in 'U'

Discussion started by: sneakyimp

4. Shell Programming and Scripting

PERL:How to convert numeric values txt file to PACKED DECIMAL File?

Discussion started by: aloktiwary

5. Shell Programming and Scripting

How to check if a column is having a numeric value or not in a file?

Discussion started by: keerthan

6. Shell Programming and Scripting

how to grep only particular length of numeric values

Discussion started by: somi2yoga

7. Shell Programming and Scripting

Check values in file

Discussion started by: sandy1028