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run sed -i "s/ *$//" awk.html.markdown
Remove of trailing spaces.
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@ -118,11 +118,11 @@ BEGIN {
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# Arrays
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arr[0] = "foo";
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arr[1] = "bar";
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# You can also initialize an array with the built-in function split()
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n = split("foo:bar:baz", arr, ":");
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# You also have associative arrays (actually, they're all associative arrays)
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assoc["foo"] = "bar";
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assoc["bar"] = "baz";
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@ -240,7 +240,7 @@ function io_functions( localvar) {
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# for this can be treated as a file handle, for purposes of I/O. This makes
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# it feel sort of like shell scripting, but to get the same output, the string
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# must match exactly, so use a variable:
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outfile = "/tmp/foobar.txt";
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print "foobar" > outfile;
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@ -261,7 +261,7 @@ function io_functions( localvar) {
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# Reads a line from a file and stores in localvar
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infile = "/tmp/foobar.txt";
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getline localvar < infile;
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getline localvar < infile;
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close(infile);
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}
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@ -273,10 +273,10 @@ function io_functions( localvar) {
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# When you pass arguments to AWK, they are treated as file names to process.
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# It will process them all, in order. Think of it like an implicit for loop,
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# iterating over the lines in these files. these patterns and actions are like
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# switch statements inside the loop.
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# switch statements inside the loop.
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/^fo+bar$/ {
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# This action will execute for every line that matches the regular
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# expression, /^fo+bar$/, and will be skipped for any line that fails to
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# match it. Let's just print the line:
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@ -382,5 +382,5 @@ Further Reading:
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* [Awk man page](https://linux.die.net/man/1/awk)
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* [The GNU Awk User's Guide](https://www.gnu.org/software/gawk/manual/gawk.html) GNU Awk is found on most Linux systems.
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* [AWK one-liner collection](http://tuxgraphics.org/~guido/scripts/awk-one-liner.html)
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* [Awk alpinelinux wiki](https://wiki.alpinelinux.org/wiki/Awk) a technical summary and list of "gotchas" (places where different implementations may behave in different or unexpected ways).
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* [Awk alpinelinux wiki](https://wiki.alpinelinux.org/wiki/Awk) a technical summary and list of "gotchas" (places where different implementations may behave in different or unexpected ways).
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* [basic libraries for awk](https://github.com/dubiousjim/awkenough)
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