Using bash, I'm trying to read a .properties file (name=value pairs), assigning an indirect variable reference for each line in the file.
The trick is that a property's value string may contain the name of a property that occurred earlier in the file, and I want the name of the 1st property to... (5 Replies)
The construct ${#parameter} returns the number of characters in the parameter and ${!parameter} specifies an indirect variable. My question is: How do I combine these two. What I want is ${#!parameter} but this gives an error.
Of course I can use:
dummy=${!parameter}
${#dummy}
but that's a... (0 Replies)
Ummm can anybody help me with this one?
Its prob quite simple.
I bascially have a file name say J1x2x3x7.dat
Im using the file name as a variable in a bash script. Want I want to do is extract most of the file name and make it a new variable expect with say one of the number now a... (2 Replies)
Hi,
I've got a small problem.
If varible A stores "B" and Variable B stores C,
How to get the value of variable B by using only Variable A..?
I tried the following but didnt work pease help..
$ var1=vikram
$ echo $var1
vikram
$ vikram=sampath
$ echo $vikram
sampath
$ echo... (6 Replies)
Hi
I have variable A_B=alpha
also var1="A"
var2="B"
I want to retrieve the value alpha using var1 and var2 , somthing like
echo ${${var1}_${var2}} that works. Obviously this is receiving syntax
error (6 Replies)
Hello,
is there a kind soul who can answer me, does the SH support double substitution known as indirect expansion similar to BASH? The syntax for bash is ${!var}.
For instance in bash I can write something like this:
VAR="value"
REF_VAR="VAR"
echo ${!REF_VAR}
and get the "value"... (1 Reply)
I have a file with two columns of numbers (member IDs):
1 1
2 1
3 1
4 2
5 4
6 1
7 5
8 3
9 2
Think of column 1 as the referee and column 2 as the referrer.
Is there a good way to backtrack who referred who? I would like an output, for this example here to be:
1 1
2 1
3 1
4 2 1 (2 Replies)
Sometimes it is handy to protect long scripts in C++.
The following syntax works fine for simple commands:
#define SHELLSCRIPT1 "\
#/bin/bash \n\
echo \"hello\" \n\
"
int main ()
{
cout <<system(SHELLSCRIPT1);
return 0;
}
Unfortunately for there are problems for:
1d arrays:... (10 Replies)
Trying to do so
echo "111:222:333" |awk -F: '{system("export TESTO=" $2)}'But it doesn't work (2 Replies)
Discussion started by: urello
2 Replies
LEARN ABOUT DEBIAN
buildapp
BUILDAPP(1) User Commands BUILDAPP(1)NAME
buildapp - application to create common lisp images
SYNOPSIS
buildapp --output OUTPUT-FILE [--flag1 value1 ...]
DESCRIPTION
Required flags:
--output OUTPUT-FILE
Use OUTPUT-FILE as the name of the executable to create
Entry-point flags:
--entry NAME
Use the function identified by NAME as the executable's toplevel function. Called with SB-EXT:*POSIX-ARGV* as its only argument. If
NAME has a colon, it is treated as a package separator, otherwise CL-USER is the implied package.
--dispatched-entry DNAME
Specify one possible entry function, depending on the name of the file that is used to start the application. The syntax of DNAME is
APPLICATION-NAME/ENTRY-NAME. If the name used to start the executable matches APPLICATION-NAME, use ENTRY-NAME as the entry point.
This can be used to choose one of many possible entry points by e.g. symlinking names to the application executable. If APPLICA-
TION-NAME is empty, the specified ENTRY-NAME is used as a default if no other application names match. There may be any number of
dispatched entry points, but only one default.
Action flags:
--load FILE
Load FILE. CL:*PACKAGE* is bound to the CL-USER package before loading
--load-system NAME
Load an ASDF system identified by NAME
--require NAME
Use CL:REQUIRE to load NAME
--eval CODE
Use CL:EVAL to evaulate CODE. The code is read with CL:READ-FROM-STRING in the CL-USER package
There may be any number of load/load-system/require/eval flags. Each is executed in command-line order before creating an executable.
Load path flags:
--load-path DIRECTORY
When handling a --load, search DIRECTORY for files to load
--asdf-path DIRECTORY
When handling a --load-system, search DIRECTORY for ASDF system files to load
--asdf-tree DIRECTORY
When handling a --load-system, search DIRECTORY and all its subdirectories for ASDF system files to load
There may be any number of load-path/asdf-path/asdf-tree flags. asdf-path arguments take precedence over asdf-tree arguments.
Other flags:
--help Show this usage message
--logfile FILE
Log compilation and load output to FILE
--sbcl PATH-TO-SBCL
Use PATH-TO-SBCL instead of the sbcl program found in your PATH environment variable
For the latest documentation, see http://www.xach.com/lisp/buildapp/
buildapp 1.1 July 2010 BUILDAPP(1)