Sponsored Content
Full Discussion: Grep with C variables.
Top Forums Programming Grep with C variables. Post 302387107 by AbelBs on Thursday 14th of January 2010 12:55:36 PM
Old 01-14-2010
Quote:
Originally Posted by Corona688
That cannot even compile for a variety of reasons, I don't know what you tried but that wasn't it.

C is not a shell language, you cannot embed variables in strings. You have to assemble a new string to feed to system().

Are var1, var2, and var3 actually chars, as in, single characters, or are you trying to make them strings? The answer you want is completely different depending on what you're trying to do.
Ummm ok, sorry for may explanation.
File:
ID_Doctor year Month Benefit
1543 2009 2 45
3242 2010 9 45
1543 2009 2 50

I need add de benefit of the each doctor, in the same year and the same month.

For example:
Doctor 1543 2009 2 95
Doctor 3242 2009 9 45

Then, I need use the value of the id_Doctor (C variable) for find it in a file.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Using grep with variables

Being new to shell scripting I hope this question isn't too elementary but here goes. I run a grep statement - grep 'sqr' sqrmodule.par and the grep statement returns correctly the information that I'm looking for. Now I want to take the output from the grep statement and load it into a... (2 Replies)
Discussion started by: gettingstarted
2 Replies

2. Shell Programming and Scripting

awk as grep with variables

i have such awk working fine but how to use variable instead of strings awk '/asdasd.*asda.*asdasd/' file2.txt This is not working: awk '/${a}.*${b}.*${c}/' file2.txt Thanks & regards Peter (7 Replies)
Discussion started by: pp56825
7 Replies

3. Shell Programming and Scripting

How to use variables/array in grep command

Hi, I have a reqmt as i have some values in array and I want to search each value in a file by grep command. Here goes my scripting: #!/bin/ksh set -A ArrayA CENTER LEFT RIGHT echo "ArrayA contains: ${ArrayAİ*¨}" grep -e "${ArrayAİ*¨}" filename.txt The above grep is working for... (4 Replies)
Discussion started by: prashant43
4 Replies

4. Shell Programming and Scripting

grep variables nested within grep

Help, I have a ksh script that has some variables within the grep command, I am then setting another variable that greps the variables that have greps within them. cat $WORKINGDIR/meter_list.txt | while read meter do serialnum=$(cat masterlogfile.txt | grep "$meter" | awk '{ print $19 }'... (7 Replies)
Discussion started by: srichard9
7 Replies

5. Shell Programming and Scripting

Print lines where variables occur more than once using grep

Hello, I want to only print lines where variables occur more than once using grep. For eg: Input: $this is a comment int a,b,c,b; int b,c; int d,e; int f,g,f; x=y+5; For the above input, the output would be int a,b,c,b; int f,g,f; I have done grep... (3 Replies)
Discussion started by: prasanna1157
3 Replies

6. Shell Programming and Scripting

grep and variables ?

I would like to know if grep can extract the following requirement. I have the folllowing piece of SQL in a file and need to grep the FROM part. mp db-ter-fast-export C100_Input_Target_Table__table_ "${DB}"'/teradata.dbc' -select 'SELECT UPPER(trim(proj_id)) as proj_id, latest_job_id,... (9 Replies)
Discussion started by: anduzzi
9 Replies

7. Shell Programming and Scripting

Using awk or grep with Variables in a script

Good day Geeks, Am having an issue with using variables in a rather simple script, the script is as follows: #!/bin/bash ### Script written by Adigun Gbenga ### Date: April 28, 2012 array=( 1 2 3 4 5 29 7 8 9... (6 Replies)
Discussion started by: infinitydon
6 Replies

8. Shell Programming and Scripting

[Help] Grep, Variables, IF statements... Fun

Hello, this will be my first post. I've been browsing around for a bit and have found a lot of useful information on here, hopefully a solution can be provided to me. Issue: Alright, I am looking to search for strings within a file using variables. I have a script that will accept 3 or 4... (2 Replies)
Discussion started by: JonLaberge
2 Replies

9. Homework & Coursework Questions

Grep, Variables, IF statements... Fun

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: The issue I am having is part of a validation problem. My script will validate 3 or 4 parameters entered by the... (4 Replies)
Discussion started by: JonLaberge
4 Replies

10. Shell Programming and Scripting

Using $variables in grep

Hi, I'm currently trying to use variables in grep on my script. Printing the variable via echo works fine. Also, if I hard coded the date of the appointment it works just fine. But, if I try to use the $DATE as an argument in grep it doesn't do anything. #!/bin/bash DATE=${2}/${3}/${1} ... (6 Replies)
Discussion started by: nuclearpenguin
6 Replies
CAL(1)							    BSD General Commands Manual 						    CAL(1)

NAME
cal, ncal -- displays a calendar and the date of Easter SYNOPSIS
cal [-3hjy] [-A number] [-B number] [[month] year] cal [-3hj] [-A number] [-B number] -m month [year] ncal [-3hjJpwy] [-A number] [-B number] [-s country_code] [[month] year] ncal [-3hJeo] [-A number] [-B number] [year] ncal [-CN] [-H yyyy-mm-dd] [-d yyyy-mm] DESCRIPTION
The cal utility displays a simple calendar in traditional format and ncal offers an alternative layout, more options and the date of Easter. The new format is a little cramped but it makes a year fit on a 25x80 terminal. If arguments are not specified, the current month is dis- played. The options are as follows: -h Turns off highlighting of today. -J Display Julian Calendar, if combined with the -e option, display date of Easter according to the Julian Calendar. -e Display date of Easter (for western churches). -j Display Julian days (days one-based, numbered from January 1). -m month Display the specified month. If month is specified as a decimal number, it may be followed by the letter 'f' or 'p' to indicate the following or preceding month of that number, respectively. -o Display date of Orthodox Easter (Greek and Russian Orthodox Churches). -p Print the country codes and switching days from Julian to Gregorian Calendar as they are assumed by ncal. The country code as deter- mined from the local environment is marked with an asterisk. -s country_code Assume the switch from Julian to Gregorian Calendar at the date associated with the country_code. If not specified, ncal tries to guess the switch date from the local environment or falls back to September 2, 1752. This was when Great Britain and her colonies switched to the Gregorian Calendar. -w Print the number of the week below each week column. -y Display a calendar for the specified year. -3 Display the previous, current and next month surrounding today. -A number Display the number of months after the current month. -B number Display the number of months before the current month. -C Switch to cal mode. -N Switch to ncal mode. -d yyyy-mm Use yyyy-mm as the current date (for debugging of date selection). -H yyyy-mm-dd Use yyyy-mm-dd as the current date (for debugging of highlighting). A single parameter specifies the year (1-9999) to be displayed; note the year must be fully specified: ``cal 89'' will not display a calendar for 1989. Two parameters denote the month and year; the month is either a number between 1 and 12, or a full or abbreviated name as speci- fied by the current locale. Month and year default to those of the current system clock and time zone (so ``cal -m 8'' will display a calen- dar for the month of August in the current year). Not all options can be used together. For example ``-3 -A 2 -B 3 -y -m 7'' would mean: show me the three months around the seventh month, three before that, two after that and the whole year. ncal will warn about these combinations. A year starts on January 1. Highlighting of dates is disabled if stdout is not a tty. SEE ALSO
calendar(3), strftime(3) HISTORY
A cal command appeared in Version 5 AT&T UNIX. The ncal command appeared in FreeBSD 2.2.6. AUTHORS
The ncal command and manual were written by Wolfgang Helbig <helbig@FreeBSD.org>. BUGS
The assignment of Julian-Gregorian switching dates to country codes is historically naive for many countries. Not all options are compatible and using them in different orders will give varying results. BSD
March 14, 2009 BSD
All times are GMT -4. The time now is 06:56 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy