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Using the part of a line as a variable?

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# 1  
Old 10-29-2011
Using the part of a line as a variable?
Hello Friends,

I need a command (or script line) that allows me to use of a part of line (given by me) as a variable. Let us assume the name of the command is MYCMD.

When I type

MYCMD fish://mfong@vhl.gov.nd/homefolder/hhk/ADS/

it must do the following job

cd /homefolder/hhk/ADS/


I just want to use the part of line strarting from /homefolder...



Can anyone tell me how to do ?

Thanks
# 2  
Old 10-29-2011
Code:
alias mycmd='perl -wle "$ARGV[0]=~/\@.+?(\/.+)/;print qq(cd $1)"'

hmm sad but 'alias' can't understand that line..
mycmd fish://mfong@vhl.gov.nd/homefolder/hhk/ADS/ not working for some reason
Last edited by tip78; 10-29-2011 at 09:59 AM..
This User Gave Thanks to For This Post:
rpf
tip78
# 3  
Old 10-29-2011
Thank you very much tip78.

When I use the command mycmd like that

mycmd fish://mfong@vhl.gov.nd/homefolder/hhk/ADS/
it would do
cd /homefolder/hhk/ADS/

but it couldn't cange my directory to /homefolder/hhk/ADS/ Smilie
Last edited by rpf; 10-29-2011 at 10:06 AM..
# 4  
Old 10-29-2011
try this:
Code:
alias mycmd='perl -we "$ARGV[0]=~/\@.+?(\/.+)/;`cd $1`"'

or that:
Code:
alias mycmd='perl -we "$ARGV[0]=~/\@.+?(\/.+)/;chdir qq($1)"'

Last edited by tip78; 10-29-2011 at 10:19 AM..
This User Gave Thanks to For This Post:
rpf
tip78
# 5  
Old 10-29-2011
sorry both of them don't work again.

thank you for your efforts
# 6  
Old 10-29-2011
well..
Code:
alias mycmd='perl -we "$ARGV[0]=~/\@.+?(\/.+)/;system qq(cd $1)"'

???

whatever
make a script 'mycmd' and put it in your /usr/sbin

Code:
#!/usr/bin/perl -w

chdir"$1" if($ARGV[0]=~/\@.+?(\/.+)/);

if it's not work again try to change 'chdir "$1"' for 'system "cd $1"' or `cd $1`

but FIRST don't forget to make 'unalias mycmd'
This User Gave Thanks to For This Post:
rpf
tip78
# 7  
Old 10-29-2011
Quote:
Originally Posted by tip78
try this:
Code:
alias mycmd='perl -we "$ARGV[0]=~/\@.+?(\/.+)/;`cd $1`"'

or that:
Code:
alias mycmd='perl -we "$ARGV[0]=~/\@.+?(\/.+)/;chdir qq($1)"'


it gives the error following

Can't exec "cd": No such file or directory at -e line 1.

---------- Post updated at 02:27 PM ---------- Previous update was at 02:25 PM ----------

ok now trying to put it my bin file

---------- Post updated at 02:37 PM ---------- Previous update was at 02:27 PM ----------

Quote:
Originally Posted by tip78
well..
Code:
alias mycmd='perl -we "$ARGV[0]=~/\@.+?(\/.+)/;system qq(cd $1)"'

???

whatever
make a script 'mycmd' and put it in your /usr/sbin

Code:
#!/usr/bin/perl -w

chdir"$1" if($ARGV[0]=~/\@.+?(\/.+)/);

if it's not work again try to change 'chdir "$1"' for 'system "cd $1"' or `cd $1`

but FIRST don't forget to make 'unalias mycmd'

for all of three there are some syntax errors Smilie

---------- Post updated at 02:47 PM ---------- Previous update was at 02:37 PM ----------

for all of three there are still some syntax errors
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