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Here is an example of the character being used in a pattern (as it's grep pattern file 1) to select any one character, and is of course unrelated to file or directory names: ls -la | grep . This prints the directory contents so it catches everything (grep -v . is used to catch empty lines).
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Q&A for users of Linux, FreeBSD and other Un*x-like...
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Q&A for users of Linux, FreeBSD and other Un*x-like...
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12 gru 2011 · ls -a overrides the special treatment of files whose names start with .. ls -A lists "hidden" files and folders, but excludes . (this directory) and .. (the parent directory); some versions of ls might not support -A.
5 wrz 2018 · The short answer is that the . doesn't "do" anything; the shell interprets it as a literal period character. Programs such as ls can choose what to do when they see a leading period, though. –
16 cze 2020 · The -name predicate takes a glob, not a regular expression. In a regular expression, * would match zero or more of the preceding item. But since this is a glob, it matches zero or more of any character. That is, * in a glob means the same thing as .* in a regular expression.
Here is a more practical example of quoting special characters. A few UNIX commands take arguments that often include wildcard characters, which need to be escaped so the shell doesn’t process them first. The most common such command is find, which searches for files throughout entire directory trees.
12 paź 2018 · Depending on the text sample, it may be more complex that that -- period and spurious spaces at end-of-line, no space whatsoever after '.' (eg. "... three steps.If you ..."), periods used for other purposes (eg 'v1.2.3'), etc.
18 lis 2008 · I started venturing in learning the art of using AWK/GAWK and wanted to simply added a period from line #11 to line #28 or to the end of the file if there is data. So for example: 11 Centos.NM 12 dojo1 13 redhat.5.5.32Bit 14 redhat.6.2.64Bit...
