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Batch file include external file for variables
...en use the following snippet to load them:
for /f "delims=" %%x in (config.txt) do (set "%%x")
This utilizes a similar trick as before, namely just using set on each line. The quotes are there to escape things like <, >, &, |. However, they will themselves break when quotes are used in th...
Why should text files end with a newline?
...inated by newline will have a different effect than one without:
$ more a.txt
foo
$ more b.txt
bar$ more c.txt
baz
$ cat {a,b,c}.txt
foo
barbaz
And, as the previous example also demonstrates, when displaying the file on the command line (e.g. via more), a newline-terminated file results in a corre...
grep, but only certain file extensions
...nge of possibilites but the answer given below of grep -r --include=*.txt 'searchterm' ./ really explains the essence of the answer
– David Casper
Jan 27 '17 at 1:44
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How to split a large text file into smaller files with equal number of lines?
...
How about the split command?
split -l 200000 mybigfile.txt
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Bash tool to get nth line from a file
...
sed -n '2p' < file.txt
will print 2nd line
sed -n '2011p' < file.txt
2011th line
sed -n '10,33p' < file.txt
line 10 up to line 33
sed -n '1p;3p' < file.txt
1st and 3th line
and so on...
For adding lines with sed, you can c...
How do I get the file extension of a file in Java?
...t file name):
String ext1 = FilenameUtils.getExtension("/path/to/file/foo.txt"); // returns "txt"
String ext2 = FilenameUtils.getExtension("bar.exe"); // returns "exe"
Maven dependency:
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId&g...
Writing outputs to log file and console
...y want to write to a file and not the console try: echo "blah" | tee file1.txt | tee file2.txt >/dev/null 'Blah' will not be put in file1.txt & file2.txt, but not written to the console.
– danger89
Jan 6 '16 at 15:06
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grep exclude multiple strings
... examples of filtering out multiple lines with grep:
Put this in filename.txt:
abc
def
ghi
jkl
grep command using -E option with a pipe between tokens in a string:
grep -Ev 'def|jkl' filename.txt
prints:
abc
ghi
Command using -v option with pipe between tokens surrounded by parens:
egrep ...
Convert xlsx to csv in Linux with command line
...
@hhh The separator option only works with txt export type. You can use this to print to stdout: ssconvert -O "separator=;" -T Gnumeric_stf:stf_assistant file.xlsx fd://1.
– exic
Sep 5 '17 at 10:52
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How to append text to an existing file in Java?
... the Files class makes this easy:
try {
Files.write(Paths.get("myfile.txt"), "the text".getBytes(), StandardOpenOption.APPEND);
}catch (IOException e) {
//exception handling left as an exercise for the reader
}
Careful: The above approach will throw a NoSuchFileException if the file does ...