Solaris

Hello Guys,

can someone help explain the script below for me? I will really appreciate it.

Code:

vi db_script
#!/bin/sh
echo .cron job run on.`date`> cronjob.txt
df -h >> cronjob.txt
echo welcome to home

It writes the following to the file called cronjob.txt
I added GMT because I do not know your timezone, and I ran this on cycwin - my network connection to my solaris boxes is not available so the output of df -h does not look right

Code:

.cron job run on. Tue Jun 12 21:05:28 GMT 2012
Filesystem            Size  Used Avail Use% Mounted on
C:/cygwin/bin         452G   69G  384G  16% /usr/bin
C:/cygwin/lib         452G   69G  384G  16% /usr/lib
C:/cygwin             452G   69G  384G  16% /
C:                    452G   69G  384G  16% /cygdrive/c
D:                     14G   12G  1.6G  89% /cygdrive/d

The echo statement makes line 1. > means open a file, and start writing from the beginning, overwriting the existing stuff in the file. The rest of the file comes from the df -h >> command. The >> means append to the file.


cronjob.txt lives in the login directory for the user whose crontab this came from.

Thanks Jim. So how do you test a script before running it? I am completely new to scripting . Please I will appreciate it.

Thanks