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Make xargs execute the command once for each line of input
...your input:
xargs -L 1
xargs --max-lines=1 # synonym for the -L option
from the man page:
-L max-lines
Use at most max-lines nonblank input lines per command line.
Trailing blanks cause an input line to be logically continued on
the next input line. Implies -x.
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How to avoid “if” chains?
...grammers. So clearly a win-win: decent code and somebody learned something from reading it.
– x4u
Jun 27 '14 at 12:11
24
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How do I execute any command editing its file (argument) “in place” using bash?
...gt;temp.txt"); print OUT;'
Here, the perl part reads the complete output from uniq in variable $_ and then overwrites the original file with this data. You could do the same in the scripting language of your choice, perhaps even in Bash. But note that it will need enough memory to store the entire...
How do I use Notepad++ (or other) with msysgit?
...-multiInst' option, for ensuring a new instance of notepad++ for each call from Git.
Note also that, if you are using Git on Cygwin (and want to use Notepad++ from Cygwin), then scphantm explains in "using Notepad++ for Git inside Cygwin" that you must be aware that:
git is passing it a cygwin ...
php execute a background process
... script in whatever language (php/bash/perl/etc) is handy and then call it from the process control functions in your php script.
The function probably detects if standard io is used as the output stream and if it is then that will set the return value..if not then it ends
proc_close( proc_open( ...
Generating a unique machine id
...ecification for all SMBIOS structures available.
To query the SMBIOS info from Windows you could use EnumSystemFirmwareEntries, EnumSystemFirmwareTables and GetSystemFirmwareTable.
IIRC, the "unique id" from the CPUID instruction is deprecated from P3 and newer.
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Negative weights using Dijkstra's Algorithm
...neral. For example, consider this graph:
Assume the edges are directed from left to right as in your example,
Your algorithm will work as follows:
First, you set d(A) to zero and the other distances to infinity.
You then expand out node A, setting d(B) to 1, d(C) to zero, and d(D) to 99.
Nex...
Gdb print to file instead of stdout
...
I've found that you can redirect the output from gdb to a file via the run command:
(gdb) run > outfile
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Getting an element from a Set
... set should be all about. In my case, I'd like to get some complex object from a set by key (String). This String is encapsulated (and unique) to the object being mapped. In fact, the whole object 'revolves' around said key. Furthermore, the caller knows said String, but not the object itself; that...
Are GUID collisions possible?
...nt one was inserted 3 weeks ago. Not believing this, I restored a database from 2 weeks backup, and the guid was there. Checked the code, the new guid was freshly generated no doubt about it. Pow guid collision, happened only once, but I really wish I would have won at lotto instead,the chance is gr...