Login or Register to Ask a Question and Join Our Community


UNIX for Dummies Questions & Answers

AIX - bc and ksh

 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers AIX - bc and ksh
# 1  
Old 11-18-2013
AIX - bc and ksh
from command line in AIX:
bc
18+14
32

and ctrl D to exit.

i want to write shell script:

Code:
!#/bin/ksh
startdate=18
enddate=14
cd /tmp
bc
$startdate + $enddate

my goal is to tell me end date is 14 days from today.

Moderator's Comments:
Mod Comment With 58 posts, you have been a member long enough to use good tags and write good question titles.
# 2  
Old 11-18-2013
The hash-bang should be #!/bin/ksh, not !#/bin/ksh

To feed text into a command, you have to tell the shell to do so, not just put it there:

Code:
bc <<EOF
$startdate + $enddate
EOF

This is known as a 'here-document'. Note the ending EOF must not be indented, or the shell will not detect it as ending the block.

ksh can actually do its own arithmetic too:

Code:
echo $(($startdate + $enddate))

# 3  
Old 11-18-2013
appreciate your quick reply. worked perfectly. again, thanks.
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Substring AIX ksh

I am trying to obtain a substring in AIX, but unable to obtain result ${var:1:3} ksh: ${var:1:3}: bad substitution (3 Replies)
Discussion started by: tostay2003
3 Replies

2. Shell Programming and Scripting

How to compare day in ksh on AIX?

we made a script in which i am putting a day in a variable by this command d8 = `date +%a` after that I am checking for next working day meand week days only for eg. if today is Monday than previous day would be Friday and if today is Friday than next day is Monday else it would be date +1... (1 Reply)
Discussion started by: pallvi_mahajan
1 Replies

3. Shell Programming and Scripting

[Solved] AIX ksh script -d <- what does it mean?

I'm looking at a line in a script: && DRROOT="/dir1" || DRROOT="/dir2" I'm trying to understand it. Is there a "-d" command and is it seeing if /dir1 exists and, if so, set an environment variable named DRROOT to "/dir1", else set DRROOT to "/dir2" ? Thanks, -dog ---------- Post... (0 Replies)
Discussion started by: landog
0 Replies

4. Shell Programming and Scripting

AIX 5.3 ksh Scripting

Hi, I posted a request for sever OS types earlier, but got no response. In an attempt to at least have a starting point, I think scaling it to one OS is preferred. Once I see the gist of it I can modify to account for different cases. I need a script that will go and check to see if an LDAP... (2 Replies)
Discussion started by: tekster2
2 Replies

5. Shell Programming and Scripting

Aix .ksh for loop script.

Hi, I'm trying to write a for loop to run through a list of servers and for each server copy a file to a backup file. But I can't seem to get it to run through my server list. It work for individual servers, please see below. #!/bin/ksh SSH_USERID=khcuser webservers="server1 server2" ... (2 Replies)
Discussion started by: elmesy
2 Replies

6. Shell Programming and Scripting

help in ksh scripting in aix

Hello gurus I am looking for a script : We need to generate a file list created by user id on a AIX box. Criteria 1: other than userid : dwimpid & aiadmin Criteria 2: Files older than 2 months ( it can be any user id ). File Path to Look: /project and /project1 Thx silu (7 Replies)
Discussion started by: silu
7 Replies

7. Shell Programming and Scripting

Need help in writing AIX ksh scripting

I need to write the script for the below constraints. Need your help urgently The PATH environment variable must conform to the following: • World-writeable directories (/tmp, /var/tmp etc) must not be placed in the PATH variable. • System directories must always be placed before local... (1 Reply)
Discussion started by: kmvinay
1 Replies

8. Shell Programming and Scripting

Help with ksh scripting in AIX

I am looking for a script which does the following Script will run daily. 1.It will get snapshot off all filesystems including nfs mounts, automounts and clearcase mounts. 2.Then it will compare new snapshot with the snapshot created in the previous run. 3.If filesystem exists in... (20 Replies)
Discussion started by: saidiya
20 Replies

9. AIX

AIX KSH: 0403-029 There is not enough memory available now

Hi guys, I hope you can help me out with this one. I am getting an error in AIX when running my KSH script 0403-029 There is not enough memory available now. It is getting this error at the point where I have a PL/SQL Script executed. After executing, I wanted to put it in the log file.... (4 Replies)
Discussion started by: 3vilwyatt
4 Replies

10. AIX

help needed on aix ksh

i am trying to convert .ksh script to .bat in windows box , it says awk is not recognized as internal or external command. this is the sample .ksh script , even if i change awk to gawk it does not work its giving me syntax error, at line one ---- it's pointing ":" and "fund:" some one plzz help.... (0 Replies)
Discussion started by: 2.5lt V8
0 Replies
Login or Register to Ask a Question