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How do I use floating-point division in bash?
... '(/ 1.0 3)'
or through stdin:
echo '(/ 1.0 3)' | clisp --quiet | tail -n1
dc
echo 2k 1 3 /p | dc
genius cli calculator
echo 1/3.0 | genius
ghostscript
echo 1 3 div = | gs -dNODISPLAY -dQUIET | sed -n '1s/.*>//p'
gnuplot
echo 'pr 1/3.' | gnuplot
jq
echo 1/3 | jq -nf /dev/stdin
...
Compare two files line by line and generate the difference in another file
... @EgorHans: if the file has e.g. lines containing integers such as "3\n1\n3\n2\n" lines must first be reordered 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 line...
Cleaning up the iPhone simulator
...9]\{8\}-[A-Z0-9]\{4\}-[A-Z0-9]\{4\}-[A-Z0-9]\{4\}-[A-Z0-9]\{12\}' | xargs -n1 xcrun simctl erase
How can I select random files from a directory in bash?
...If you have filenames with newlines: find dirname -type f -print0 | shuf -zn1
– Hitechcomputergeek
Dec 14 '16 at 7:43
5
...
How can I view a git log of just one user's commits?
...it log --format='%H %an' |
grep -v Adam |
cut -d ' ' -f1 |
xargs -n1 git log -1
If you want to exclude commits commited (but not necessarily authored) by Adam, replace %an with %cn. More details about this are in my blog post here: http://dymitruk.com/blog/2012/07/18/filtering-by-author-na...
How to get disk capacity and free space of remote computer
...:
function getDiskSpaceInfoUNC($p_UNCpath, $p_unit = 1tb, $p_format = '{0:N1}')
{
# unit, one of --> 1kb, 1mb, 1gb, 1tb, 1pb
$l_typeDefinition = @'
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
...
Split output of command by columns using Bash?
...=$PID" '$1=PID{print$4}'. Of course, on Linux you could simply do xargs -0n1 </proc/$PID/cmdline | head -n1 or readlink /proc/$PID/exe, but anyhow...
– ephemient
Oct 27 '09 at 16:09
...
Android error: Failed to install *.apk on device *: timeout
...s in various different ways. I even tried all the fixes against 2 devices (N1 and Transformer) and 3 cables. I think there are multiple issues going on here depending on the device, It would be nice if we could fork a question or something like that. Either way, before you restart adb or chang...
Extract substring in Bash
...ch sequences:
number=$(echo $filename | egrep -o '[[:digit:]]{5}' | head -n1)
Another solution to extract exactly a part of a variable:
number=${filename:offset:length}
If your filename always have the format stuff_digits_... you can use awk:
number=$(echo $filename | awk -F _ '{ print $2 }')...
Windows远程桌面授权错误（授权超时）等报错信息疑难解答 - 更多技术 - 清...
...的应用程序事件日志中。该事件消息指出临时许可证还有多少天即将过期。与此类似，“事件 ID 1011，源 TermService”也将显示在终端服务器上的应用程序事件日志中。
解决方案： 将终端服务器授权模式从“每设备”更改为“每...