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Regex Pattern to Match, Excluding when… / Except between
...to be more obscure, you could use (*SKIP)(?!)
demo for this version
Applications
Here are some common problems that this technique can often easily solve. You'll notice that the word choice can make some of these problems sound different while in fact they are virtually identical.
How can I ma...
find -exec cmd {} + vs | xargs
...ion. Try in empty directory: "touch -- foo\ -o\ index.html; find . | xargs cat". You'll get: "cat: invalid option -- 'o'"
– Tometzky
May 28 '09 at 7:22
2
...
Can a shell script set environment variables of the calling shell? [duplicate]
...f the backquoted expression, this has the desired result.
To simplify invocation for csh, tcsh, or similar shells:
alias dosetit 'eval `setit-csh`'
or for sh, bash, and the like:
alias dosetit='eval `setit-sh`'
One nice thing about this is that you only have to maintain the list in one place....
How to print the ld(linker) search path
...g makefile from configure script or from CMakeLists.txt or even more complicated ones such as vala or srt. It's hard for me to modify ld search path in such cases
– kenn
Sep 9 '14 at 10:18
...
Detect URLs in text with JavaScript
...ation to avoid breakage, but most linkifiers I use (Gmail, etherpad, phabricator) separate trailing punctuation from the URL.
– skierpage
Jul 30 '15 at 19:01
...
FFmpeg: How to split video efficiently?
... you can use the following cmdl:
MP4Box -splits 716800 input.mp4
eg for concatenating two files you can use:
MP4Box -cat file1.mp4 -cat file2.mp4 output.mp4
Or if you need split by time, use -splitx StartTime:EndTime:
MP4Box -add input.mp4 -splitx 0:15 -new split.mp4
...
Compare two files line by line and generate the difference in another file
...ordered in to ascending or descending order e.g. "\1\n2\n3\n3\n" with duplicates adjacent. That is "sorted" and both files must be sorted in a similar manner. When the newer file has new lines it does not matter if they are "between existing lines" because after the sort they are not, they're in sor...
In Git, how can I write the current commit hash to a file in the same commit
...=${branch_name##refs/heads/}
branch_name=${branch_name:-HEAD} # 'HEAD' indicates detached HEAD situation
# Write it
echo -e "prev_commit='$commit_hash'\ndate='$commit_date'\nbranch='$branch'\n" > gitcommit.py
Now the only thing we need is a tool that converts prev_commit,branch pair to a real ...
Timeout a command in bash without unnecessary delay
...ss by SIGKILL.
declare -i delay=DEFAULT_DELAY
function printUsage() {
cat <<EOF
Synopsis
$scriptName [-t timeout] [-i interval] [-d delay] command
Execute a command with a time-out.
Upon time-out expiration SIGTERM (15) is sent to the process. If SIGTERM
signal is blocked...
In Docker, what's the difference between a container and an image? [duplicate]
... opt proc root run sbin srv sys tmp usr var
root@48cff2e9be75:/# cat > foo
This is a really important file!!!!
root@48cff2e9be75:/# exit
Don't expect that file to stick around when you exit and restart the image. You're restarting from exactly the same defined state as you started in ...