shell (Linux, Solaris) bat ( windows) Meaning
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/【directory】/【directory】/.../【directory】/ [disk]: \ [directory] \ [directory] \ ... \ [ directory] \ path
[variable] = [filename], LBSAM set [variable] = [filename], BSAM the file name assigned to the variable
[variable] = [setpoint]
[Variable] = "[Setting value]"
[Variable] = '[Setting value]'
[Variable]] = [setpoint; export [variable]
[] = [export variable setpoint]
set variable [] = [] variable assignments setting values
unset variable [variable]] = [set initialization of variables
$ {variable}} {
$ [Variable]
% []% Variable
variable references
※ If the variable in an if statement and for loop is assigned the case,
Need to use when referring to the! [Variable]!.
※ If you use the! [Variable]!, You want to add (delayed environment variable)
setlocal enabledelayedexpansion
[Digital] $
$ [Digital]} {
% When [Digital] shell / bat started, passed in the first [Digital] argument
passed when the $ 1 /% 1 → start the first argument
[Variable] = `basename $ 0 .sh` set [variable] =% ~ n0
this shell / bat file name assigned to the variable
variable = test test1.sh/test.bat →
[Variable] = `dirname [file]` for %% i in ( "[file]") do (set [variable] = %% ~ dpi)
get assigned to a variable that contains the file path
Example:
shell:
path1=`dirname /home/dir1/dir2/test.txt`
↓
path1=/home/dir1/dir2
bat ：
for %%i in ("D:\dir1\dir2\test.txt") do (
set path2=%%~dpi
)
↓
path2 = D: \ dir1 \ dir2
[Variable] [file] = `basename` for %% i in ( "[file]") do (set [variable] = %% ~ nxi) get assigned to a variable that contains the file path
example:
shell:
filename1=`dirname /home/dir1/dir2/test.txt`
↓
filename1=test.txt
bat ：
for %%i in ("D:\dir1\dir2\test.txt") do (
set filename2=%%~dpi
)
↓
filename2=test.txt
? [Variable] = $ result set [variable] on =% errorlevel% a command is assigned to the variables
if [[Conditions]]; then
[Process 1]
else
[process 2]
fi if [Conditions] (
[Process 1]
) the else (
[2] processing
)
※ inside the shell if statement (if [Test conditions]) and
Like (IF [condition] []) mean
IF [$ [variable] [value] -eq]; then if%] [% equ [variable] value (equal to the
IF [$ [variable] [value] -ne]; then if%] [% neq [variable] NUMERICAL (not equal to the
IF [$ [variable] [value] -lt]; then if%] [% lss variable [] value (less than
IF [$ [variable] NUMERICAL -le []]; then if%] [% leq variable [] value (less
IF [$ [variable] [value] -gt]; then if%] [% gtr variable [] value (greater than
IF [$ [variable] [value] -ge]; then if% variable [ GEQ] [%] value (greater than or equal
IF [[variable] $ = "string []"]; then if% variable [%] [text string] == (equal
IF [[variable] $ = "[characters! string] "]; then if not%] [% variable character string is == [] (not equal
if [-e] [files or folders]; then if exist [] files or folders (folders or files exist
if [! -e [file or folder]]; then if not exist] [file or folder (file or folder does not exist
if [-f [target]]; then for %% A in ( " Object] ") do (set [variable] %% ~ aA =)
IF"% [variable]: ~ 0,1% "==" - "
If there is ※ shell if [-f [Object]!]; The then time, corresponding to a bat
if not "%【变量】:~0,1%"=="-" (
It meant to determine whether the object is outside the file
if [-d] [Object]; then for %% A in ( " Object []") do (set [variable] %% ~ aA =)
IF "% [variable]: ~ 0,1%" == " d "(the object is a folder
if [-s] [file]; then for %% A in ( " [] file ") do (set [variable] %% ~ zA =)
IF variable%] [% gtr 0 ( file size is greater than 0
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Original link: https: //blog.csdn.net/qq_35462323/java/article/details/89335870