1. UNIX for Dummies Questions & Answers

I am looking for the correct syntax on the expr command in UNIX. I have a script that I am building at the moment. the script is creating file1 that is an actual .sql file that is going inside the oracle database to get some information in there. It take that information, puts it inside another... (2 Replies)

2. UNIX for Dummies Questions & Answers

Hi All, I might be making a silly mistake but I need ur help. I have initialized various variables: cur_month=`date +%m` cur_year=`date +%y` last_year=`expr $cur_year \- 1` It works fine for cur_month & cur_year....but has problems with last_year. FOR LAST YEAR IT GIVES A FOLLOWING... (2 Replies)

3. Shell Programming and Scripting

Hi All, I have created 85 users on Linux server. I use bsh shell for all users.But after any user get logged in on unix,he/she is not able to access the expr command.So anyone can tell me that if i have to include some files to access expr command.Because when i write-> expr 6+2 on $ prompt i'll... (1 Reply)

4. UNIX for Dummies Questions & Answers

hi guys.... i hava a command expr... where i m adding a value in a loop like Tc=`expr $Tc\+ $l` where Tc is declred as a variable and every time l contains a new vaue if Tc =0 initially and l =2 Tc should be equal to 0+ 2 and then l = 4 Tc = 2+4 and dispaly as 6 but after... (5 Replies)

5. UNIX for Dummies Questions & Answers

:) hi Unix gurus, Pls consider the following piece of code str='hello' length=echo $str|wc -c echo $length y= ` expr \( 80 - $length \) ` echo $y :confused: The last echo stmt is displaying 0 as the result. If i put direct value like 6 instead of $length in i 3rd stmt it is giving... (8 Replies)

6. UNIX for Dummies Questions & Answers

Hi friends how can i execute expr $va1 * $var2 provided i m not supposed to use '/' also the nglob variable is turned off. (4 Replies)

7. Shell Programming and Scripting

Hi Can anyone explain me the usage of this command and the arguments used here and what will be the expected output : v_num=`expr nav_d_20100204_1759 : '*\(*\)'` what will be the value returned in v_num. Thanks in Advance!!! Regards Naveen Purbia (3 Replies)

8. Shell Programming and Scripting

Hi, I am trying to code a unix function to calculate date difference between two date variables. I am stuck at a point where I am trying to convert hours into minutes. Below is the code I am doing. function get_elapsed_time { export PROPS_FILE=temp.properties export... (8 Replies)

9. Shell Programming and Scripting

how to use expr command to retrieve all the words before the equal sign "=" with shell script (3 Replies)

10. Shell Programming and Scripting

I'm trying to check if a variable'd string is only one character and use that in an if statement the only way I could find is: $expr "${var}" : . # expr STRING : regrep where the "." is the grep wildcard for any single character. Whats wrong with my code here and is there a... (3 Replies)