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Allows you to preserve your files when using cp, mv, ln, install or patch. When the target file exists, it will generate a file named XXX.~N~ (N is an auto-incremental number) instead of deleting the target file.
dir1 and all its subdirs and subdirs of subdirs ... but *no files*
will be copied to dir2 (not even symbolic links of files will be made).
To preserve ownerships & permissions:
$ cp -Rps dir1 dir2
Yes, you can do it with
$ rsync -a --include '*/' --exclude '*' /path/to/source /path/to/dest
too, but I didn't test if this can handle attributes correctly
(experiment rsync command yourself with --dry-run switch to avoid
harming your file system)
You must be in the parent directory of dir1 while executing
this command (place dir2 where you will), else soft links of
files in dir2 will be made. I couldn't find how to avoid this
"limitation" (yet). Playing with recursive unlink command loop
maybe?
PS. Bash will complain, but the job will be done.
For this hack you need following function:
$ finit() { count=$#; current=1; for i in "$@" ; do echo $current $count; echo $i; current=$((current + 1)); done; }
and alias:
$ alias fnext='read cur total && echo -n "[$cur/$total] " && read'
Inspired by CMake progress counters.
Works on real time clock, unix time based, decrementing the actual time from initial time saved in an environment variable exported to child process inside watch
Shows elapsed time from start of script in hh:mm:ss format
Non afected by system slow down due to the use of date.
This is an alternative to another command using two xargs. If it's a command you know there's only one of, you can just use:
$ ls -l /proc/$(pgrep COMMAND)/cwd
It is often recommended to enclose capital letters in a BibTeX file in braces, so the letters will not be transformed to lower case, when imported from LaTeX. This is an attempt to apply this rule to a BibTeX database file.
DO NOT USE sed '...' input.bib > input.bib as it will empty the file!
How it works:
$ /^\s*[^@%]/
Apply the search-and-replace rule to lines that start (^) with zero or more white spaces (\s*), followed by any character ([...]) that is *NOT* a "@" or a "%" (^@%).
$ s===g
Search (s) for some stuff and replace by other stuff. Do that globally (g) for all matches in each processed line.
$ \([A-Z][A-Z]*\)\([^}A-Z]\|},$\)
Matches at least one uppercase letter ([A-Z][A-Z]*) followed by a character that is EITHER not "}" and not a capital letter ([^}A-Z]) OR (|) it actually IS a "}", which is followed by "," at the end of the line ($).
Putting regular expressions in escaped parentheses (\( and \), respectively) allows to dereference the matched string later.
$ {\1}\2
Replace the matched string by "{", followed by part 1 of the matched string (\1), followed by "}", followed by the second part of the matched string (\2).
I tried this with GNU sed, only, version 4.2.1.
Yet another x11grab using ffmpeg. I also added mic input to the capturing video stream using alsa. Yet I need to find out how to capture audio which is currently playing.
It's pretty common to forgot to commit a files, be it a modification, or a brand new file.
If you did forget something, git add the files you want, and then git commit --amend. It will essentially redo the last commit, with the changes you just added. It seeds the commit message with the last commit message by default.
You probably shouldn't do this if you've already pushed the commit.
