In an earlier article, we discussed how to pass command line arguments to shell script  and access them using positional parameters. In t...

Sub-string is nothing but extracting a part of a string. In an earlier article, we discussed the various ways of how to extract a sub-stri...

In one of our earlier articles, we discussed how to insert a line before or after a pattern . In this article, we will see how to insert a l...

    In an earlier article, we discussed the purpose of  SUID , an advanced file permision. In the same lines,  Sticky bit is also an advan...

sort command is used to sort a file, arranging the records in a particular order. By default, the sort command sorts file assuming the conte...