"#! /bin/csh" != "#!/bin/csh" ?????? - 未名空间MITBBS历史存档

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"#! /bin/csh" != "#!/bin/csh" ??????

"#! /bin/csh" != "#!/bin/csh" ??????# Unix - 噫吁兮，危乎高哉

u*n2001-02-22 08:02

1 楼

When I use a software to process my data, I find there is
one shell script file doesn't work for my machine ( SunOS 5.7).
I check this file, and find the top of this file is
"#! /bin/csh"
When I delete the "blank" between "!" and "/bin/csh", i.e., change this
line as
"#!/bin/csh"
It works !!!
Since, in this file, there are lots of awk commond. I guess "#! /bin/csh"
will lead to "/bin/sh" to run this file, and hence lead to my awk problem.
So, is my idea correct ? I am not sure. After all, I am a

c*t2001-02-22 08:02

2 楼

You may run '/bin/csh yourscriptfile', then a new child csh will be created.
I think 'awk' also works in sh or ksh. You can run 'echo $RAMDOM' to figure
out what the default shell is. ( Return something, ksh; empty BourneShell;
error prompt, csh) or 'grep blah /etc/passwd' to do the same job.

【在 u*******n 的大作中提到】

: When I use a software to process my data, I find there is
: one shell script file doesn't work for my machine ( SunOS 5.7).
: I check this file, and find the top of this file is
: "#! /bin/csh"
: When I delete the "blank" between "!" and "/bin/csh", i.e., change this
: line as
: "#!/bin/csh"
: It works !!!
: Since, in this file, there are lots of awk commond. I guess "#! /bin/csh"
: will lead to "/bin/sh" to run this file, and hence lead to my awk problem.

u*n2001-02-22 08:02

3 楼

Thanks at first.
However, it seems that RAMDOM is an Undefined variable.
As to "/etc/passwd", that file is shadowed.
As I remember, there is a commond can show the password file. Who knows ?

【在 c**t 的大作中提到】

:
: You may run '/bin/csh yourscriptfile', then a new child csh will be created.
: I think 'awk' also works in sh or ksh. You can run 'echo $RAMDOM' to figure
: out what the default shell is. ( Return something, ksh; empty BourneShell;
: error prompt, csh) or 'grep blah /etc/passwd' to do the same job.

c*t2001-02-22 08:02

4 楼

It seems that the default shell is (t)csh. 'echo $SHELL' to verify.

【在 u*******n 的大作中提到】

:
: Thanks at first.
: However, it seems that RAMDOM is an Undefined variable.
: As to "/etc/passwd", that file is shadowed.
: As I remember, there is a commond can show the password file. Who knows ?

u*n2001-02-22 08:02

5 楼

It shows " /bin/csh". I guess the problem in that codes is caused by a
unseen symbol.
Thanks, buddy
-
-

【在 c**t 的大作中提到】

:
: It seems that the default shell is (t)csh. 'echo $SHELL' to verify.