大约有 1,200 项符合查询结果（耗时：0.0187秒） [XML]
How to go to each directory and execute a command?
...way (which involves parsing of ls):
ls -d */ | awk '{print $NF}' | xargs -n1 sh -c 'cd $0 && pwd && echo Do stuff'
The above example would ignore the current dir (as requested by OP), but it'll break on names with the spaces.
See also:
Bash: for each directory at SO
How to ente...
git stash -> merge stashed change with current changes
...ool) from ... yes ... a branch!
> current_branch=$(git status | head -n1 | cut -d' ' -f3)
> stash_branch="$current_branch-stash-$(date +%yy%mm%dd-%Hh%M)"
> git stash branch $stash_branch
> git checkout $current_branch
> git difftool $stash_branch
...
How to count number of files in each directory?
...it, but probably not the most efficient.
find -type d -print0 | xargs -0 -n1 bash -c 'echo -n "$1:"; ls -1 "$1" | wc -l' --
Gives output like this, with directory name followed by count of entries in that directory. Note that the output count will also include directory entries which may not be ...
git: diff between file in local repo and origin
...=`cat .git/refs/heads/master`
var_remote=`git log origin/master -1 | head -n1 | cut -d" " -f2`
if [ "$var_remote" = "$var_local" ]; then
echo "Strings are equal." #1
else
echo "Strings are not equal." #0 if you want
fi
Then you did compare local git and remote git last commit number....
...
Standardize data columns in R
... matrix or dataset
type
type of normalization:
n0 - without normalization
n1 - standardization ((x-mean)/sd)
n2 - positional standardization ((x-median)/mad)
n3 - unitization ((x-mean)/range)
n3a - positional unitization ((x-median)/range)
n4 - unitization with zero minimum ((x-min)/range)
n5 ...
Adding a new value to an existing ENUM Type
...COLUMN "my_column" SET DEFAULT 'my_default_value';
– n1ru4l
Mar 15 '19 at 8:15
add a comment
...
Go to particular revision
...
You can do this git log -n1. But unless git checkout failed, it's a waste of effort.
– Marcelo Cantos
Sep 24 '11 at 23:56
...
Cron jobs and random times, within given hours
...efault so it could be better to avoid the bashism $RANDOM: sleep $(( $(od -N1 -tuC -An /dev/urandom) \% 90 ))m.
– pabouk
Jun 18 '15 at 13:57
9
...
Difference between binary tree and binary search tree
...y tree is binary search tree.
boolean b = new Sample().isBinarySearchTree(n1, Integer.MIN_VALUE, Integer.MAX_VALUE);
.......
.......
.......
public boolean isBinarySearchTree(TreeNode node, int min, int max)
{
if(node == null)
{
return true;
}
boolean left = isBinarySearch...
App Inventor 2 串口通信教程 - USB串口与蓝牙串口 · App Inventor 2 中文网
... 接收数据积木（定时轮询方式）
接收数据积木（分隔符方式）
Arduino 端代码示例（蓝牙串口）
方案二：USB 串口通信（扩展组件）
前提条件
支持的 USB 转串口芯片
USB Serial 扩展组...