Do batch files execute completely in DOS command order? - China DOS Union Forum

I'm a DOS beginner, and I want to start with batch files. I don't know whether it's easy to learn...

It's not hard.. Batch files execute in sequence according to the order you write them.
So each line in a batch command can only have one command..

Wow,,, an expert has arrived..~

Re zovusazm:

Similar to high-level compiled languages, batch processing also has three execution structures: sequential structure, loop structure, and selection structure.

In most batch file applications, the sequential structure is more common, that is, "execute in sequence according to the order you write them." Of course, for slightly more complex applications, selection structures like IF and loop structures like FOR are also used.

However, in advanced applications, the structure often used is GOTO, which is more or less the same as GOTO in BASIC. This is also a common structure in all interpreted languages. It is used to implement large-range loop structures or selection structures, that is, loops or selections spanning more than one line. For example:
Multi-statement form of selection IF:

IF == GOTO CHOOSE_A
IF == GOTO CHOOSE_B
:CHOOSE_A
REM statement block corresponding to choice A
GOTO END
:CHOOSE_B
REM statement block corresponding to choice B
GOTO END
:END

Multi-statement form of loop FOR:

SET CONIDITION=
SET BOUND=~~~~~~
REM This loop executes 5 times; the boundary above can be flexibly controlled as long as it meets the condition.
:LOOP
IF == GOTO END
REM statement block inside the loop.
SET CONIDITION=~%CONDITION%
:END

In batch processing, one line is not limited to one command.
For example,
a command1 & command2 & command3 ... (no matter whether the previous command fails, the following ones are still executed)
b command1 && command2 && command3....(the following ones are executed only if the previous command succeeds)
c command1 || command2|| command3.... (the following ones are executed only if the previous command fails)
These multi-command forms helped me solve some thorny problems!

There's also the pipe symbol for connecting front and back: | program1 | program2
Also, filtering:
command | find (search)
command |more (paged display)
command |sort (sort)

Floor1　冰寅	Posted 2003-11-15 00:00
初级用户　Posts 2　Credits 108
I'm a DOS beginner, and I want to start with batch files. I don't know whether it's easy to learn...

Floor2　如是大师	Posted 2003-11-15 00:00
元老会员　Posts 3,351　Credits 9,654　From 湖北
It's not hard.. Batch files execute in sequence according to the order you write them. So each line in a batch command can only have one command..

Floor3　zovusazm	Posted 2003-11-17 00:00
初级用户　Posts 11　Credits 153
Wow,,, an expert has arrived..~

Floor4　willsort	Posted 2003-11-19 00:00
元老会员　Posts 1,512　Credits 4,432
Re zovusazm: Similar to high-level compiled languages, batch processing also has three execution structures: sequential structure, loop structure, and selection structure. In most batch file applications, the sequential structure is more common, that is, "execute in sequence according to the order you write them." Of course, for slightly more complex applications, selection structures like IF and loop structures like FOR are also used. However, in advanced applications, the structure often used is GOTO, which is more or less the same as GOTO in BASIC. This is also a common structure in all interpreted languages. It is used to implement large-range loop structures or selection structures, that is, loops or selections spanning more than one line. For example: Multi-statement form of selection IF: IF == GOTO CHOOSE_A IF == GOTO CHOOSE_B :CHOOSE_A REM statement block corresponding to choice A GOTO END :CHOOSE_B REM statement block corresponding to choice B GOTO END :END Multi-statement form of loop FOR: SET CONIDITION= SET BOUND=~~~~~~ REM This loop executes 5 times; the boundary above can be flexibly controlled as long as it meets the condition. :LOOP IF == GOTO END REM statement block inside the loop. SET CONIDITION=~%CONDITION% :END

Floor5　GOTOmsdos	Posted 2003-12-06 00:00
铂金会员　Posts 1,827　Credits 5,154
In batch processing, one line is not limited to one command. For example, a command1 & command2 & command3 ... (no matter whether the previous command fails, the following ones are still executed) b command1 && command2 && command3....(the following ones are executed only if the previous command succeeds) c command1 \|\| command2\|\| command3.... (the following ones are executed only if the previous command fails) These multi-command forms helped me solve some thorny problems! There's also the pipe symbol for connecting front and back: \| program1 \| program2 Also, filtering: command \| find (search) command \|more (paged display) command \|sort (sort)