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Quick-and-dirty way to ensure only one instance of a shell script is running at a time
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Here's an implementation that uses a lockfile and echoes a PID into it. This serves as a protection if the process is killed before removing the pidfile:
LOCKFILE=/tmp/lock.txt
if [ -e ${LOCKFILE} ] && kill -0 `cat ${LOCKFILE}`; then
echo "already runni...
C# HttpClient 4.5 multipart/form-data upload
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Wow, it's so much simpler to do this when uploading big files to REST API. I don't like to comment for thanks, but thanks. It's portable for Windows Phone 8.
– Léon Pelletier
Jun 25 '13 at 8:50
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Elegant way to search for UTF-8 files with BOM?
For debugging purposes, I need to recursively search a directory for all files which start with a UTF-8 byte order mark (BOM). My current solution is a simple shell script:
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Determine which MySQL configuration file is being used
Is there a command to determine which configuration file MySQL 5.0 is currently using?
15 Answers
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Should *.xccheckout files in Xcode5 be ignored under VCS?
Apple has introduced a new project-related type of file in Xcode 5: "xccheckout".
5 Answers
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How to RSYNC a single file?
...he same way as you would a directory, but you specify the full path to the filename as the source. In your example:
rsync -avz --progress /var/www/public_html/.htaccess root@<remote-ip>:/var/www/public_html/
share
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Import CSV file into SQL Server
I am looking for help to import a .csv file into SQL Server using BULK INSERT and I have few basic questions.
12 Answer...
Print a file's last modified date in Bash
I can't seem to find how to print out the date of a file. I'm so far able to print out all the files in a directory, but I need to print out the dates with it.
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Why “no projects found to import”?
...he "root directory" I select the directory where all my .java (and .class) files are located. Eclipse writes me that "no projects are found to import". Why?
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How to check if a file exists in the Documents directory in Swift?
How to check if a file exists in the Documents directory in Swift ?
12 Answers
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