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How can I output leading zeros in Ruby?
...o you could do something like:
irb(main):002:0> filename = "%s/%s.%04d.txt" % ["dirname", "filename", 23]
=> "dirname/filename.0023.txt"
Here's a printf format cheat sheet you might find useful in forming your format string. The printf format is originally from the C function printf, but s...
Convert line-endings for whole directory tree (Git)
...otmp
2. short format with a list of explicite file names:
letter1.txt revenues9.xls report3\turnover5.ppt
3. long format with MANY dir trees and file masks PER dir tree:
-dir src1 src2 !src\save -file foosys .cpp -dir bin5 -file .exe
For detailed help on file selection, type "s...
How can I get Docker Linux container information from within the container itself?
... so it is transfered to container:
docker run -t -i -cidfile /mydir/host1.txt -v /mydir:/mydir ubuntu /bin/bash
The docker id (shortened) will be in file /mydir/host1.txt in the container.
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Want to exclude file from “git diff”
...downloads:
git diff `git status -s |grep -v ^\ D |grep -v file/to/exclude.txt |cut -b4-`
Where file/to/exclude.txt is the name of the file you would like to exclude, of course.
Edit: credit ksenzee for fixing deleted files breaking the diff.
...
Is there a way to 'pretty' print MongoDB shell output to a file?
...ah.mongolab.com:33478/blah -u user -p pass --eval "my query" >> dump.txt but it gave me JavaScript execution failed: SyntaxError: Unexpected token ILLEGAL.
– Sheharyar
Dec 5 '13 at 6:39
...
How to check if a path is absolute path or relative path in cross platform way with Python?
...ibrary:
import ntpath
import posixpath
ntpath.isabs("Z:/a/b/c../../H/I/J.txt")
True
posixpath.isabs("Z:/a/b/c../../H/I/J.txt")
False
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...
scp with port number specified
...ser username
Then you can use:
scp username@www.myserver.com:/root/file.txt .
or
scp short:/root/file.txt .
You can use anything on the "Host" line with ssh, scp, rsync, git & more
There are MANY configuration option that you can use in config files, see:
man ssh_config
...
How do you use a variable in a regular expression?
...
This:
var txt=new RegExp(pattern,attributes);
is equivalent to this:
var txt=/pattern/attributes;
See http://www.w3schools.com/jsref/jsref_obj_regexp.asp.
...
How to use Git?
...e can also commit the multiple files of same type using command git add '*.txt'. This command will commit all files with txt extension.
4) Follow changes
The aim of using version control is to keep all versions of each and every file in our project,
Compare the the current version with last com...
What is the difference between $(command) and `command` in shell programming?
...actical: it's easier to nest $() than ``:
listing=$(ls -l $(cat filenames.txt))
vs.
listing=`ls -l \`cat filenames.txt\``
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