by Sasikala on December 23, 2009
This article is part of the on-going Unix Sed Tips and Tricks series.
Like any other programming language, sed also provides special branching commands to control the flow of the program.
In this article, let us review following two types of Sed branching.
- Sed Unconditional Branch
- Sed Conditional Branch
(more…)
by Sasikala on December 9, 2009
by Sasikala on November 23, 2009
As part of our on going UNIX sed tutorial series earlier we covered the printing, deletion, substitution, file write, file manipulation commands etc., with the single line in the pattern space.
In this article let us review how to do the multi-line operation in Sed.
(more…)
by Sasikala on November 9, 2009
This article is part of the on going Unix sed command tutorial series. In our previous articles we learned sed with single commands — printing, deletion, substitute and file write.
Sed provides lot of commands to perform number of operations with the lines in a file.
In this article let us review how to append, insert, replace a line in a file and how to get line numbers of a file.
(more…)
by Sasikala on October 16, 2009
Question: Is it possible for me to combine multiple sed commands? Can I combine two sed commands and execute it as single sed command?
Answer: In our previous articles we learned sed with single commands — printing, deletion, substitute and file write.
In this article let us review how to combine multiple sed commands using option -e as shown below.
(more…)
by Sasikala on October 7, 2009
by Sasikala on September 30, 2009
This article is part of on-going Unix Sed Tutorial series. In previous articles, we discussed about sed print operation and sed delete operation.
In this article let us review how to use sed substitute command “s”.
The `s’ command is probably the most important in `sed’ and has a lot of different options.
(more…)
by Sasikala on September 21, 2009
In the previous sed tutorial we discussed about Unix sed command basics and printing lines from a file using sed address and patterns.
In this article, let us review how to delete lines from a file using address and patterns with 8 awesome examples.
(more…)