Re: simple (and stupid) shell scripting question

2010-02-16 Thread Christian Weisgerber
Nerius Landys wrote: > Is there a function, or command line utility, to "escape" a string, > making it suitable to be input on the command line? For example, this > "escape" utility would take a input of "te st" and create an output of > "te\ st". Other things such as quotes and single quotes w

Re: simple (and stupid) shell scripting question

2010-02-15 Thread Nerius Landys
>> #!/bin/sh >> >> DIRNAME="`dirname \"$0\"`" >> cd "$DIRNAME" >> SCRIPTDIR="`pwd`" >> >> What if I got rid of extra double quotes?  Like this: >> >> DIRNAME=`dirname \"$0\"` >> cd "$DIRNAME" >> SCRIPTDIR=`pwd` > > That is perfectly fine.  Word-splitting and filename expansion are > not performed f

Re: simple (and stupid) shell scripting question

2010-02-15 Thread Christian Weisgerber
Nerius Landys wrote: > #!/bin/sh > > DIRNAME="`dirname \"$0\"`" > cd "$DIRNAME" > SCRIPTDIR="`pwd`" > > What if I got rid of extra double quotes? Like this: > > DIRNAME=`dirname \"$0\"` > cd "$DIRNAME" > SCRIPTDIR=`pwd` That is perfectly fine. Word-splitting and filename expansion are not p

Re: simple (and stupid) shell scripting question

2010-02-15 Thread Eray Aslan
On 15.02.2010 09:21, Nerius Landys wrote: > But in the case where you're assigning the output of ls directly to a > variable like this: > > FOO=`ls` > > vs > > FOO="`ls`" > > the text assigned to FOO is the same, right? Apparently, it is: sh-4.0$ touch "x *" sh-4.0$ FOO=`ls`;echo "$FOO"|od 00

Re: simple (and stupid) shell scripting question

2010-02-14 Thread Nerius Landys
> >From the man page: > > Command Substitution > [...] >  If  the  substitution  appears within double quotes, word splitting and >       pathname expansion are not performed on the results. > > In other words: > > sh-4.0$ touch "x y" > sh-4.0$ for i in `ls`; do echo "$i"; done > x > y > sh-4.0$ fo

Re: simple (and stupid) shell scripting question

2010-02-14 Thread Eray Aslan
On 15.02.2010 08:07, Nerius Landys wrote: > DIRNAME="`dirname \"$0\"`" > cd "$DIRNAME" > SCRIPTDIR="`pwd`" > > What if I got rid of extra double quotes? Like this: > > DIRNAME=`dirname \"$0\"` > cd "$DIRNAME" > SCRIPTDIR=`pwd` > > Does this behave any differently in any kind of case? Are thes

simple (and stupid) shell scripting question

2010-02-14 Thread Nerius Landys
#!/bin/sh I have these lines in my script: DIRNAME="`dirname \"$0\"`" cd "$DIRNAME" SCRIPTDIR="`pwd`" What if I got rid of extra double quotes? Like this: DIRNAME=`dirname \"$0\"` cd "$DIRNAME" SCRIPTDIR=`pwd` Does this behave any differently in any kind of case? Are thes double quotes just