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CALL command vs. START with /WAIT option
How is the START command with a WAIT option
6 Answers
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How are zlib, gzip and zip related? What do they have in common and how are they different?
...has an option to do the compression at the same time, instead of having to pipe the output of tar to compress. This all carried forward to the gzip format, and tar has an option to compress directly to the .tar.gz format. The tar.gz format compresses better than the .zip approach, since the compre...
Batch script: how to check for admin rights
...The error output is first redirected to the standard output, which is then piped to the find command. At this point we have to look for the only parameter that is supported in all Windows version since Windows 2000: /SCANNOW. The search is case insensitive, and the output is discarded by redirecting...
How to find Unused Amazon EC2 Security groups
...ext | tr '\t' '\n'
Then get all security groups tied to an instance, then piped to sort then uniq:
aws ec2 describe-instances --query 'Reservations[*].Instances[*].SecurityGroups[*].GroupId' --output text | tr '\t' '\n' | sort | uniq
Then put it together and compare the 2 lists and see what's not ...
Escape double quotes in parameter
...ial and error implies that in the initial state, redirection (to a file or pipe) is recognized and a caret ^ escapes a double quote and the caret is removed from the input. In the other state, redirection is not recognized and a caret does not escape a double quote and isn't removed. Let's refer t...
What is the exact meaning of Git Bash?
...FT focuses all their attention on PS. It's pretty nice, really, taking the pipe-oriented features of Unix-based shells (bash, sh, csh, ksh, zsh, etc.) and extending them to allow passing objects, vs just text.
– Peter Halverson
Feb 22 '19 at 19:12
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Exploitable PHP functions
...`` (backticks) - Same as shell_exec()
popen - Opens read or write pipe to process of a command
proc_open - Similar to popen() but greater degree of control
pcntl_exec - Executes a program
PHP Code Execution
Apart from eval there are other ways to execute PHP code: include/requir...
Best approach to real time http streaming to HTML5 video client
... MP4 and I had to tune the FFMPEG parameters, and the standard node stream pipe redirection over http that I used originally was all that was needed.
In MP4 there is a 'fragmentation' option that breaks the mp4 into much smaller fragments which has its own index and makes the mp4 live streaming opt...
What are the differences between git remote prune, git prune, git fetch --prune, etc
...l local branches that don't have a corresponding remote branch. You could pipe this to xargs git branch -D, but note that any new branches you've created but never pushed to the server would be deleted, so tread carefully: git branch -r | awk '{print $1}' | egrep -v -f /dev/fd/0 <(git branch -v...
What specific productivity gains do Vim/Emacs provide over GUI text editors?
...stems, ctags, etc.) than most editors. Even something simple like :.!, to pipe a command's output into a buffer, is something you won't find in most GUI editors.
A tabbed interface is not as nice as the "windowed" interface that Vim/Emacs give you. You can see two or more files at the same time si...