菩提本無樹

windows 批次檔1.loop 從0開始,每次加1,直到302.執行完IT6332B_on.exe3.等80秒4.執行完IT6332B_off.exe5.等6秒6.Loop,重新執行2~5步驟, 直到i等於30for /L %%i in (0 1 30) do (start D:\Power_supply_on_off\IT6332B_on.exetimeout /t 80 /nobreakstart D:\Power_supply_on_off\IT6332B_o

改變垂直視窗的size:vertical resize +18or:vertical resize -10改變水平視窗的sizeresize+18orresize-10

轉載自https://raam.org/2009/mac-address-validation-regex-with-egrep/MAC Address Validation Regex with egrepI needed an easy way to validate a MAC address in a bash script that generated a uniqu

轉載自http://stackoverflow.com/questions/19417015/bash-copy-from-one-array-to-anothera=(foo bar "foo 1" "bar two") #create an arrayb=("${a[@]}") #copy the array in another one

轉載自http://www.gnu.org/software/make/manual/html_node/Flavors.html#Flavors1.There is another assignment operator for variables, ‘?=’. This is called a conditional variable assignment operator,

轉載自http://stackoverflow.com/questions/10820343/how-can-i-generate-new-variable-names-on-the-fly-in-a-shell-script SAMPLE1='1-first.with.custom.name'SAMPLE2='2-second.with.custom.name'for (( i

Makefile有三个非常有用的变量。分别是$@，$^，$<代表的意义分别是： $@--目标文件，$^--所有的依赖文件，$<--第一个依赖文件。 

-------------邏輯 "OR"------------#VMX_MODE=y#NORMAL_MODE=yall:ifeq ($(findstring y, $(VMX_MODE) $(NORMAL_MODE)), y)@echo "successful"else@echo "failed"endifref https://blog.youkuaiyun.com/u010312...

轉載自https://www.linuxjournal.com/content/using-named-pipes-fifos-bashIt's hard to write a bash script of much import without using a pipe or two. Named pipes, on the other hand, are much rarer.Like...

轉載自https://unix.stackexchange.com/questions/181423/how-to-assign-the-cat-output-of-a-bash-script-to-a-variable-in-another-script var=$( cat foo.txt )would store the output of the cat in variabl...

轉載自 https://blog.youkuaiyun.com/tttyd/article/details/11742241

ref:https://unix.stackexchange.com/questions/251625/how-to-log-internet-connection-drops        while :do for interface in $(ls /sys/class/net/ | grep -v lo | grep -v p2p0| grep -v wla...

轉載自 http://stackoverflow.com/questions/17368067/length-of-string-in-bash$ myvar="some string"$ echo ${#myvar} 11Just do this:size=${#myvar} To confirm it was properly saved:$ echo $siz

While writing a shell script you may want to find out the length of a string. While reading GNU expr command man page I found an interesting option as follows:expr length STRINGFor example

轉載自 http://malihou2008.blog.163.com/blog/static/21182004520124158390765/ Makefile Functionmake 提供了很多函数（包括内置函数和自定义的函数）。这些函数为我们处理变量、文本内容、文件名、命令提供了方便。我们在需要的地方调用函数来处理指定的文本（参数）。函数在调用的地方被替换成它的处理结果。

轉載自http://blog.youkuaiyun.com/haoel/article/details/2894作者 陈皓使用函数————在Makefile中可以使用函数来处理变量，从而让我们的命令或是规则更为的灵活和具有智能。make所支持的函数也不算很多，不过已经足够我们的操作了。函数调用后，函数的返回值可以当做变量来使用。一、函数的调用语法函数调用，很像变

轉載自http://blog.yam.com/ddy1280/article/13941218 範例：    假設有一個目錄如下  (這個樹狀目錄架構是使用 tree 指令所產生的).|-- Makefile|-- VERSION|-- VERSION.bak|-- inc|   |-- fork.h|   |-- main.h|   `-- m

轉載自 http://malihou2008.blog.163.com/blog/static/21182004520124157330988/ Makefile Variablemakefile 中的变量除了在 makefile 中自定义的之外，还可以来自 make 内置缺省变量（default variable）、make 内置自动化变量（automatic varia

＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝Makefile start＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝BUILD_DEST=/tmp/BUILD_DESTTARGET_PREFIX=/tmp.PHONY: prepareprepare:　　$(if $(wildcard $(BUILD_DEST)),,mkdir -p $(BUILD_DEST))　　$

svn checkout with commit times (keep original timestamp)svn co --config-option config:miscellany:use-commit-times=yes svnserverip/projectnameex: svn co --config-option config:miscellany:use-

http://www.ibm.com/developerworks/cn/linux/l-makefile/

MAKE=`which make` TIME=`which time`TIME_OPTIONS="--portability" $TIME $TIME_OPTIONS $MAKE

12345678#FILENAME:Makefileexport SAI=y ifeq ($(SAI),y)CFLAGS += -DSAIendif all:    @gcc $(CFLAGS) macro_test.c -o ma

set錯誤直接停止, 在最上面加上:set -e錯誤不停止，繼續執行set +e

轉載自http://blog.crboy.net/2012/03/trap-in-bash-zsh-script.html在 bash (zsh) script 中使用 trap最近在跑分散式的程式，每次測試都要開好幾隻程式在跑。就算可以寫 script 自動開啟，還是會遇到一個很討厭的問題，沒辦法自動關閉那些屬於 worker 的程式。好像解釋的不太清楚.

TOOLCHAIN_VER := gcc-XXX-XXXTOOLCHAIN_PTH := $(shell cd /opt/toolchains/$(TOOLCHAIN_VER) && pwd)$(if $(TOOLCHAIN_PTH),, $(error toolchain directory "$(TOOLCHAIN_VER)" does not exist))

轉載自 http://www.humbug.in/2012/makefile-check-if-a-file-exists-using-wildcard-function/http://stackoverflow.com/questions/1077676/how-to-conditional-set-up-a-makefile-variable-by-testing-if-a-file-

$(shell)$(shell) is a special function in gmake that runs an external command and captures the output for use in the makefile.For example, you could get the current working directory like this