Cannot cd to a directory returned by an exe program
I have this simple file:
tags
home C:Usersrodde
docs C:UsersroddeDocuments
prev D:
dt C:Softwaredt
The first column contains the tags, and the second column contains respective directories. Also, I have a program (dt.exe) that expects a tag and prints to std::cout a respective directory. For example, dt.exe docs will output C:UsersroddeDocuments. Finally, I have a batch script dt.bat
@echo off
if [%*] == 1 (
rem Once here, we have no arguments.
rem Chdir to the previous directory.
dt.exe prev > directory.tmp
set DIR=<directory.tmp
dt.exe --update-prev %cd%
cd %DIR%
) else if [%1] == [-l] (
dt.exe -l
) else if [%1] == [-s] (
dt.exe -s
) else if [%1] == [-L] (
dt.exe -L
) else if [%1] == [-S] (
dt.exe -S
) else if [%1] == [-d] (
dt.exe -d
) else (
rem Once here, we have a tag, so chdir
rem to respective directory
dt.exe %1 > directory.tmp
set DIR=<directory.tmp
cd %DIR%
)
Unfortunately, this works only every 4th time or so.
What am I missing?
(The source code for dt.exe is here.)
windows batch-file cd
edited Nov 23 at 6:12
double-beep
1,298722
asked Nov 22 at 6:25
coderodde
6372919
add a comment |
I have this simple file:
tags
home C:Usersrodde
docs C:UsersroddeDocuments
prev D:
dt C:Softwaredt
The first column contains the tags, and the second column contains respective directories. Also, I have a program (dt.exe) that expects a tag and prints to std::cout a respective directory. For example, dt.exe docs will output C:UsersroddeDocuments. Finally, I have a batch script dt.bat
@echo off
if [%*] == 1 (
rem Once here, we have no arguments.
rem Chdir to the previous directory.
dt.exe prev > directory.tmp
set DIR=<directory.tmp
dt.exe --update-prev %cd%
cd %DIR%
) else if [%1] == [-l] (
dt.exe -l
) else if [%1] == [-s] (
dt.exe -s
) else if [%1] == [-L] (
dt.exe -L
) else if [%1] == [-S] (
dt.exe -S
) else if [%1] == [-d] (
dt.exe -d
) else (
rem Once here, we have a tag, so chdir
rem to respective directory
dt.exe %1 > directory.tmp
set DIR=<directory.tmp
cd %DIR%
)
Unfortunately, this works only every 4th time or so.
What am I missing?
(The source code for dt.exe is here.)
windows batch-file cd
edited Nov 23 at 6:12
double-beep
1,298722
asked Nov 22 at 6:25
coderodde
6372919
If Not "%~1"=="" dt.exe %~1
– CatCat
Nov 22 at 6:30
Please provide a more specific title of your question! the current one is nothing but totally useless! Thank you!
– aschipfl
Nov 22 at 8:39
1
if [%*] == 1will never be fulfilled; I guess you meantif [%*] ==. Anyway, the bracket syntax seems to be widely used but is very bad practice; use quotes instead like shown by CatCat:if "%*"==""; this protects white-spaces and other special characters. Nevertheless, theelse ifblocks could be avoided by just usingdt.exe %1...
– aschipfl
Nov 22 at 8:43
1
The main problem in your code is the fact that you assign a variable (DIR) and read it in the same block of code, which requires delayed expansion; otherwise, you actually read the value that was present before the whole block is read...
– aschipfl
Nov 22 at 8:49
add a comment |
I have this simple file:
tags
home C:Usersrodde
docs C:UsersroddeDocuments
prev D:
dt C:Softwaredt
The first column contains the tags, and the second column contains respective directories. Also, I have a program (dt.exe) that expects a tag and prints to std::cout a respective directory. For example, dt.exe docs will output C:UsersroddeDocuments. Finally, I have a batch script dt.bat
@echo off
if [%*] == 1 (
rem Once here, we have no arguments.
rem Chdir to the previous directory.
dt.exe prev > directory.tmp
set DIR=<directory.tmp
dt.exe --update-prev %cd%
cd %DIR%
) else if [%1] == [-l] (
dt.exe -l
) else if [%1] == [-s] (
dt.exe -s
) else if [%1] == [-L] (
dt.exe -L
) else if [%1] == [-S] (
dt.exe -S
) else if [%1] == [-d] (
dt.exe -d
) else (
rem Once here, we have a tag, so chdir
rem to respective directory
dt.exe %1 > directory.tmp
set DIR=<directory.tmp
cd %DIR%
)
Unfortunately, this works only every 4th time or so.
What am I missing?
(The source code for dt.exe is here.)
windows batch-file cd
edited Nov 23 at 6:12
double-beep
1,298722
asked Nov 22 at 6:25
coderodde
6372919
I have this simple file:
tags
home C:Usersrodde
docs C:UsersroddeDocuments
prev D:
dt C:Softwaredt
The first column contains the tags, and the second column contains respective directories. Also, I have a program (dt.exe) that expects a tag and prints to std::cout a respective directory. For example, dt.exe docs will output C:UsersroddeDocuments. Finally, I have a batch script dt.bat
@echo off
if [%*] == 1 (
rem Once here, we have no arguments.
rem Chdir to the previous directory.
dt.exe prev > directory.tmp
set DIR=<directory.tmp
dt.exe --update-prev %cd%
cd %DIR%
) else if [%1] == [-l] (
dt.exe -l
) else if [%1] == [-s] (
dt.exe -s
) else if [%1] == [-L] (
dt.exe -L
) else if [%1] == [-S] (
dt.exe -S
) else if [%1] == [-d] (
dt.exe -d
) else (
rem Once here, we have a tag, so chdir
rem to respective directory
dt.exe %1 > directory.tmp
set DIR=<directory.tmp
cd %DIR%
)
Unfortunately, this works only every 4th time or so.
What am I missing?
(The source code for dt.exe is here.)
windows batch-file cd
windows batch-file cd
edited Nov 23 at 6:12
double-beep
1,298722
asked Nov 22 at 6:25
coderodde
6372919
edited Nov 23 at 6:12
double-beep
1,298722
asked Nov 22 at 6:25
coderodde
6372919
edited Nov 23 at 6:12
double-beep
1,298722
edited Nov 23 at 6:12
double-beep
1,298722
edited Nov 23 at 6:12
double-beep
1,298722
1,298722
asked Nov 22 at 6:25
coderodde
6372919
asked Nov 22 at 6:25
coderodde
6372919
asked Nov 22 at 6:25
coderodde
6372919
6372919
If Not "%~1"=="" dt.exe %~1
– CatCat
Nov 22 at 6:30
Please provide a more specific title of your question! the current one is nothing but totally useless! Thank you!
– aschipfl
Nov 22 at 8:39
1
if [%*] == 1will never be fulfilled; I guess you meantif [%*] ==. Anyway, the bracket syntax seems to be widely used but is very bad practice; use quotes instead like shown by CatCat:if "%*"==""; this protects white-spaces and other special characters. Nevertheless, theelse ifblocks could be avoided by just usingdt.exe %1...
– aschipfl
Nov 22 at 8:43
1
The main problem in your code is the fact that you assign a variable (DIR) and read it in the same block of code, which requires delayed expansion; otherwise, you actually read the value that was present before the whole block is read...
– aschipfl
Nov 22 at 8:49
add a comment |
If Not "%~1"=="" dt.exe %~1
– CatCat
Nov 22 at 6:30
Please provide a more specific title of your question! the current one is nothing but totally useless! Thank you!
– aschipfl
Nov 22 at 8:39
1
if [%*] == 1will never be fulfilled; I guess you meantif [%*] ==. Anyway, the bracket syntax seems to be widely used but is very bad practice; use quotes instead like shown by CatCat:if "%*"==""; this protects white-spaces and other special characters. Nevertheless, theelse ifblocks could be avoided by just usingdt.exe %1...
– aschipfl
Nov 22 at 8:43
1
The main problem in your code is the fact that you assign a variable (DIR) and read it in the same block of code, which requires delayed expansion; otherwise, you actually read the value that was present before the whole block is read...
– aschipfl
Nov 22 at 8:49
If Not "%~1"=="" dt.exe %~1– CatCat
Nov 22 at 6:30
If Not "%~1"=="" dt.exe %~1– CatCat
Nov 22 at 6:30
Please provide a more specific title of your question! the current one is nothing but totally useless! Thank you!
– aschipfl
Nov 22 at 8:39
Please provide a more specific title of your question! the current one is nothing but totally useless! Thank you!
– aschipfl
Nov 22 at 8:39
1
1
if [%*] == 1 will never be fulfilled; I guess you meant if [%*] == . Anyway, the bracket syntax seems to be widely used but is very bad practice; use quotes instead like shown by CatCat: if "%*"==""; this protects white-spaces and other special characters. Nevertheless, the else if blocks could be avoided by just using dt.exe %1...– aschipfl
Nov 22 at 8:43
if [%*] == 1 will never be fulfilled; I guess you meant if [%*] == . Anyway, the bracket syntax seems to be widely used but is very bad practice; use quotes instead like shown by CatCat: if "%*"==""; this protects white-spaces and other special characters. Nevertheless, the else if blocks could be avoided by just using dt.exe %1...– aschipfl
Nov 22 at 8:43
1
1
The main problem in your code is the fact that you assign a variable (
DIR) and read it in the same block of code, which requires delayed expansion; otherwise, you actually read the value that was present before the whole block is read...– aschipfl
Nov 22 at 8:49
The main problem in your code is the fact that you assign a variable (
DIR) and read it in the same block of code, which requires delayed expansion; otherwise, you actually read the value that was present before the whole block is read...– aschipfl
Nov 22 at 8:49
add a comment |
1 Answer
1
active
oldest
votes
I believe that your if statements are incorrectly defined, you don't need all the else statements either.. so as a start:
@echo off
if [%*] == (
rem Once here, we have no arguments.
rem Chdir to the previous directory.
dt.exe prev > directory.tmp
set DIR=<directory.tmp
dt.exe --update-prev %cd%
cd %DIR%
) else (
if [%1] == [-l] dt.exe -l
if [%1] == [-s] dt.exe -s
if [%1] == [-L] dt.exe -L
if [%1] == [-S] dt.exe -S
if [%1] == [-d] dt.exe -d
) else (
rem Once here, we have a tag, so chdir
rem to respective directory
dt.exe %1 > directory.tmp
set DIR=<directory.tmp
cd %DIR%
)
However, this is very tedious and unwanted. why not simply replace all of the if else with a single statement:
dt.exe %~1
So we can test by checking if %~1 is valid or not, if not, exit, if it is, execute:
if "%~1"=="" exit || dt.exe %~1
Does not matter what your input it, it will run it, unless empty. Obviously you can replace the exit with other commands.
answered Nov 22 at 6:34
Gerhard Barnard
6,91631131
add a comment |
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1 Answer
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oldest
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I believe that your if statements are incorrectly defined, you don't need all the else statements either.. so as a start:
@echo off
if [%*] == (
rem Once here, we have no arguments.
rem Chdir to the previous directory.
dt.exe prev > directory.tmp
set DIR=<directory.tmp
dt.exe --update-prev %cd%
cd %DIR%
) else (
if [%1] == [-l] dt.exe -l
if [%1] == [-s] dt.exe -s
if [%1] == [-L] dt.exe -L
if [%1] == [-S] dt.exe -S
if [%1] == [-d] dt.exe -d
) else (
rem Once here, we have a tag, so chdir
rem to respective directory
dt.exe %1 > directory.tmp
set DIR=<directory.tmp
cd %DIR%
)
However, this is very tedious and unwanted. why not simply replace all of the if else with a single statement:
dt.exe %~1
So we can test by checking if %~1 is valid or not, if not, exit, if it is, execute:
if "%~1"=="" exit || dt.exe %~1
Does not matter what your input it, it will run it, unless empty. Obviously you can replace the exit with other commands.
answered Nov 22 at 6:34
Gerhard Barnard
6,91631131
add a comment |
I believe that your if statements are incorrectly defined, you don't need all the else statements either.. so as a start:
@echo off
if [%*] == (
rem Once here, we have no arguments.
rem Chdir to the previous directory.
dt.exe prev > directory.tmp
set DIR=<directory.tmp
dt.exe --update-prev %cd%
cd %DIR%
) else (
if [%1] == [-l] dt.exe -l
if [%1] == [-s] dt.exe -s
if [%1] == [-L] dt.exe -L
if [%1] == [-S] dt.exe -S
if [%1] == [-d] dt.exe -d
) else (
rem Once here, we have a tag, so chdir
rem to respective directory
dt.exe %1 > directory.tmp
set DIR=<directory.tmp
cd %DIR%
)
However, this is very tedious and unwanted. why not simply replace all of the if else with a single statement:
dt.exe %~1
So we can test by checking if %~1 is valid or not, if not, exit, if it is, execute:
if "%~1"=="" exit || dt.exe %~1
Does not matter what your input it, it will run it, unless empty. Obviously you can replace the exit with other commands.
answered Nov 22 at 6:34
Gerhard Barnard
6,91631131
add a comment |
I believe that your if statements are incorrectly defined, you don't need all the else statements either.. so as a start:
@echo off
if [%*] == (
rem Once here, we have no arguments.
rem Chdir to the previous directory.
dt.exe prev > directory.tmp
set DIR=<directory.tmp
dt.exe --update-prev %cd%
cd %DIR%
) else (
if [%1] == [-l] dt.exe -l
if [%1] == [-s] dt.exe -s
if [%1] == [-L] dt.exe -L
if [%1] == [-S] dt.exe -S
if [%1] == [-d] dt.exe -d
) else (
rem Once here, we have a tag, so chdir
rem to respective directory
dt.exe %1 > directory.tmp
set DIR=<directory.tmp
cd %DIR%
)
However, this is very tedious and unwanted. why not simply replace all of the if else with a single statement:
dt.exe %~1
So we can test by checking if %~1 is valid or not, if not, exit, if it is, execute:
if "%~1"=="" exit || dt.exe %~1
Does not matter what your input it, it will run it, unless empty. Obviously you can replace the exit with other commands.
answered Nov 22 at 6:34
Gerhard Barnard
6,91631131
I believe that your if statements are incorrectly defined, you don't need all the else statements either.. so as a start:
@echo off
if [%*] == (
rem Once here, we have no arguments.
rem Chdir to the previous directory.
dt.exe prev > directory.tmp
set DIR=<directory.tmp
dt.exe --update-prev %cd%
cd %DIR%
) else (
if [%1] == [-l] dt.exe -l
if [%1] == [-s] dt.exe -s
if [%1] == [-L] dt.exe -L
if [%1] == [-S] dt.exe -S
if [%1] == [-d] dt.exe -d
) else (
rem Once here, we have a tag, so chdir
rem to respective directory
dt.exe %1 > directory.tmp
set DIR=<directory.tmp
cd %DIR%
)
However, this is very tedious and unwanted. why not simply replace all of the if else with a single statement:
dt.exe %~1
So we can test by checking if %~1 is valid or not, if not, exit, if it is, execute:
if "%~1"=="" exit || dt.exe %~1
Does not matter what your input it, it will run it, unless empty. Obviously you can replace the exit with other commands.
answered Nov 22 at 6:34
Gerhard Barnard
6,91631131
edited Nov 22 at 8:52
answered Nov 22 at 6:34
Gerhard Barnard
6,91631131
answered Nov 22 at 6:34
Gerhard Barnard
6,91631131
answered Nov 22 at 6:34
Gerhard Barnard
6,91631131
6,91631131
add a comment |
add a comment |
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If Not "%~1"=="" dt.exe %~1– CatCat
Nov 22 at 6:30
Please provide a more specific title of your question! the current one is nothing but totally useless! Thank you!
– aschipfl
Nov 22 at 8:39
1
if [%*] == 1will never be fulfilled; I guess you meantif [%*] ==. Anyway, the bracket syntax seems to be widely used but is very bad practice; use quotes instead like shown by CatCat:if "%*"==""; this protects white-spaces and other special characters. Nevertheless, theelse ifblocks could be avoided by just usingdt.exe %1...– aschipfl
Nov 22 at 8:43
1
The main problem in your code is the fact that you assign a variable (
DIR) and read it in the same block of code, which requires delayed expansion; otherwise, you actually read the value that was present before the whole block is read...– aschipfl
Nov 22 at 8:49