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Reading specific lines only
I'm using a for loop to read a file, but I only want to read specific lines, say line #26 and #30. Is there any built-in feature to achieve this?
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How can I find and run the keytool
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Thanks @SHAHM: great for us folks that don't want to explicitly download Java AGAIN and be bugged every week to upgrade to latest version.
– Pete Alvin
Oct 27 '19 at 14:54
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How to check if two arrays are equal with JavaScript? [duplicate]
... will modify that array.
// you might want to clone your array first.
for (var i = 0; i < a.length; ++i) {
if (a[i] !== b[i]) return false;
}
return true;
}
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How can I visualize per-character differences in a unified diff file?
Say I get a patch created with git format-patch . The file is basically a unified diff with some metadata. If I open the file in Vim, I can see which lines have been modified, but I cannot see which characters in the changed lines differ. Does anyone know a way (in Vim, or some other free softwar...
Can I run multiple programs in a Docker container?
...application and mongo database. Normally I would install both in a VM and, forward a host port to the guest web app. I'd like to give Docker a try but I'm not sure how I'm meant to use more than one program. The documentations says there can only be only ENTRYPOINT so how can I have Mongo and my fla...
How do I remove duplicate items from an array in Perl?
...rld of 1987 - when this was created - and almost 100% backword compbaility for perl - so it cannot be eliminated.
– szabgab
Jun 25 '12 at 8:19
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AWS S3 copy files and folders between two buckets
I have been on the lookout for a tool to help me copy content of an AWS S3 bucket into a second AWS S3 bucket without downloading the content first to the local file system.
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How to get disk capacity and free space of remote computer
...t Win32_LogicalDisk -ComputerName remotecomputer -Filter "DeviceID='C:'" |
Foreach-Object {$_.Size,$_.FreeSpace}
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How to find the mysql data directory from command line in windows
...rep|sed ...) then use the following command line:
mysql -s -N -uUSER -p information_schema -e 'SELECT Variable_Value FROM GLOBAL_VARIABLES WHERE Variable_Name = "datadir"'
The command will select the value only from mysql's internal information_schema database and disables the tabular output and ...
Converting camel case to underscore case in ruby
.... Also, I don't think you even need to include self., or at least it works for me under Ruby 1.9.3.
– Gus Shortz
Jul 17 '13 at 15:39
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