We all are well aware of Unix Commands but still
would like to walk you through some of the commands that we generally come
across in our day to day task. Focus would be on the associates who are not
very familiar with UNIX. Though simple but still would like to put some light
with few commands that comes handy while scripting in UNIX which in turn is
invoked by a concurrent program as a host file
Note: Unix is case sensitive.
Here I am categorizing the commands into two
sections one set which can be used directly on a UNIX prompt and the one which
needs to be executed a Shell Script using a Concurrent program registration.
Section 1
1. Command to Change Directory
Syntax: cd <Path> Or cd
$<Custom/Standard Top Name>_TOP (In CAPS)
Path: Here we need to mention the path or
directory structure where we want to navigate.
Ex: cd /tmp
Or cd $AR_TOP (Navigates to the AR Module
directory)
2. To know the Present Working Directory
Syntax: pwd
Here it would display the path/directory
structure where one is currently located.
3. To create a Directory
Syntax: mkdir
4. To list the files in a directory
Syntax: ls –ltr
This is will list the files or folders that exist
in the current directory where are executing the command
5. To find a file in a directory where you are currently working
Syntax: find <File Name with Directory
Path>
6. Syntax to move a file from one directory to another directory
Syntax:
mv <Source_Directory_Path><file_name>
<Destination_Directory_Path><file_name>
7. Remove a file from a where you are currently working
Syntax: rm –f <file anme>
8. Syntax for IF Statement
Syntax:
if [ <expression> ]
then
<Statement><commands>
else
<Statement><commands>
fi
9. To fetch the value of a variable we use “$” and to display any value we
use “echo”
Example: file_count=1
echo $file_count
This will return 1
10. Finding and removing file/files which is past 7 days old
Syntax:
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