Examples of using Sed in English and their translations into Chinese
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Political
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Ecclesiastic
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Programming
After all, you have become a sed guru by now.
However, in a sed script, the same command applies to all lines.
We will plod along using a few tools we have at hand-namely, sed and Perl- and our own ingenuity.
Erythrocyte sedimentation rate(sed rate) to check for inflammation.
One can simply create a list of edits in a sed script and then run it on all the files.
Erythrocyte sedimentation rate(sed rate or ESR)- to detect inflammation in the body;
Think of running millions of inputs through sed or a bash loop, how much faster will it be in Go?
If a sed script can be used again, you should rename the script and save it.
The motto of the school is"Non sibi sed omnibus" meaning"Not for one's self but for all".
Sed has a few rudimentary programming constructs that can be used to build more complicated scripts.
This appears to be supported in UNIX versions of sed, but this feature is not clearly documented in the manpage.
Sed can also be used effectively to edit very large files that would be slow to edit interactively.
Unless you are redirecting the output of sed to another program, you will want to capture the output in a file.
Sed was created as a special-purpose editor that was meant to execute scripts exclusively; unlike ed, it cannot be used interactively.
The focus of this book is on writing scripts for sed and awk that quickly solve an assortment of problems for the user.
Because sed is always working with the latest version of the original line, any edit that is made changes the line for subsequent commands.
At that time new administrators will start examining the logs with the classical tools cat,tail, sed, awk, perl, and grep.
Initially, using sed and awk will seem like the long way to accomplish a task.
Due to variations in the structure of the data in the system-release file between distributions, this sed expression may be different on your system.
The syntax of a sed command can be detailed, and it's easy to make a mistake or omit a required element.
Article 34.17 shows a practical application of the scrivener's work, a sed program that searches for a particular phrase that might be split across two lines.
It also can be used incombination with other tools such as grep or sed to perform operations on those files.
For each input line, after running the script sed ordinarily outputs the pattern space(the line as modified by the script) and begins the cycle again with the next line.
Lines of a sed script are each a pattern-action pair, indicating what pattern to match and which action to perform, which can be recast as a conditional statement.
In this example, sed will delete the first line of/etc/password and print the rest of the file.
Later on, we will look at a sed script that converts troff macros into stylesheet tags for use in Ventura Publisher.
New users typically think that sed applies an individual editing command to all lines of input before applying the next editing command.
The Unix stream editor, sed implemented many of the scripting features of qed that were not supported by ed on Unix.
For instance, you could use sed to analyze a plain text file and insert troff macros before directing the output to troff for formatting.