Exec and command line redirects?

n6mod · 29th October 2003, 00:36

OK, I've been fighting this one all afternoon.

I need to execute the command line

mkpasswd -l >> passwd

mkpasswd lives in $INSTDIR\bin, and I really want the file to land in $INSTDIR\etc, but I can't even get that far. mkpasswd just prints to stdout and I need to get that into a file.

No matter what combination of quoting (and I've tried a lot) I use, I always get either silent failure or "mkpasswd: a domain is only accepted when -d is given"

In other words, the '>>' is being interpreted as a parameter to mkpasswd, not as a redirect.

I've read a dozen threads on similar and I can't figure this one out.

I really want to say

nsExec::ExecToLog '$INSTDIR\bin\mkpasswd -l >> $INSTDIR\etc\passwd'

with whatever additional quoting/escaping/chanting/cursing is necessary to make it work.

Any guidance would be appreciated.

Thanks,
Zandr

kichik · 29th October 2003, 12:51

You must use the command line interpreter to use redirection. Use petersa's method in this thread:

http://forums.winamp.com/showthread....ighlight=mysql

Don't forget to use short file names for the command line interpreter. Use GetFullPathName /SHORT if the path is dynamic (includes $INSTDIR like in your case, for example).

n6mod · 29th October 2003, 16:43

Thanks kichik!

I ended up working around this last night by invoking .bat files, but this is easier to maintain.

Thanks again,
Z

14th April 2006, 18:37

Could someone post a WORKING solution for exactly that?
I can't figure out, how the command
mkpasswd -l >> passwd
should work from NSIS and write the 'passwd' to the standard-etc-directory.

kichik · 14th April 2006, 20:30

code:
ReadEnvStr $0 COMSPEC

ExecWait "$0 /c mkpasswd -l >> passwd"

29th October 2003, 00:36	#1
n6mod Junior Member Join Date: Oct 2003 Posts: 7	Exec and command line redirects? OK, I've been fighting this one all afternoon. I need to execute the command line mkpasswd -l >> passwd mkpasswd lives in $INSTDIR\bin, and I really want the file to land in $INSTDIR\etc, but I can't even get that far. mkpasswd just prints to stdout and I need to get that into a file. No matter what combination of quoting (and I've tried a lot) I use, I always get either silent failure or "mkpasswd: a domain is only accepted when -d is given" In other words, the '>>' is being interpreted as a parameter to mkpasswd, not as a redirect. I've read a dozen threads on similar and I can't figure this one out. I really want to say nsExec::ExecToLog '$INSTDIR\bin\mkpasswd -l >> $INSTDIR\etc\passwd' with whatever additional quoting/escaping/chanting/cursing is necessary to make it work. Any guidance would be appreciated. Thanks, Zandr

29th October 2003, 12:51	#2
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	You must use the command line interpreter to use redirection. Use petersa's method in this thread: http://forums.winamp.com/showthread....ighlight=mysql Don't forget to use short file names for the command line interpreter. Use GetFullPathName /SHORT if the path is dynamic (includes $INSTDIR like in your case, for example). NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

14th April 2006, 20:30	#5
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	code: ReadEnvStr $0 COMSPEC ExecWait "$0 /c mkpasswd -l >> passwd" NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

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29th October 2003, 16:43	#3
n6mod Junior Member Join Date: Oct 2003 Posts: 7	Thanks kichik! I ended up working around this last night by invoking .bat files, but this is easier to maintain. Thanks again, Z

14th April 2006, 18:37	#4
PatPowerMan Guest Posts: n/a	Could someone post a WORKING solution for exactly that? I can't figure out, how the command mkpasswd -l >> passwd should work from NSIS and write the 'passwd' to the standard-etc-directory.