10-05-2014
Quote:
Originally Posted by
cokedude
Yep thats it
![Smilie Smilie](https://www.unix.com/images/smilies/smile.gif)
. Thank you. I wasn't familiar with that
$() trick. Where can I read more about things like that?
man bash (or whatever your shell be) is your friend:
Quote:
Command Substitution
Command substitution allows the output of a command to replace the command name. There are two forms:
$(command)
or
`command`
Quote:
Originally Posted by
cokedude
. . .
Can you please explain this part? I don't understand the purpose of a "~" here and why you had to the a.out in "//" . Would bash try to expand the "." if you didn't "\" it?
. . .
man awk is your friend:
Quote:
5. Expressions and operators
The expression syntax is similar to C. . . .
New expressions are composed with the following operators in order of increasing precedence.
assignment = += -= *= /= %= ^=
.
.
.
matching ~ !~
.
.
.
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KILL(1) General Commands Manual KILL(1)
NAME
kill - terminate a process with extreme prejudice
SYNOPSIS
kill [ -sig ] processid ...
kill -l
DESCRIPTION
Kill sends the TERM (terminate, 15) signal to the specified processes. If a signal name or number preceded by `-' is given as first argu-
ment, that signal is sent instead of terminate (see sigvec(2)). The signal names are listed by `kill -l', and are as given in
/usr/include/signal.h, stripped of the common SIG prefix.
The terminate signal will kill processes that do not catch the signal; `kill -9 ...' is a sure kill, as the KILL (9) signal cannot be
caught. By convention, if process number 0 is specified, all members in the process group (i.e. processes resulting from the current
login) are signaled (but beware: this works only if you use sh(1); not if you use csh(1).) Negative process numbers also have special
meanings; see kill(2) for details.
The killed processes must belong to the current user unless he is the super-user.
The process number of an asynchronous process started with `&' is reported by the shell. Process numbers can also be found by using ps(1).
Kill is a built-in to csh(1); it allows job specifiers of the form ``%...'' as arguments so process id's are not as often used as kill
arguments. See csh(1) for details.
SEE ALSO
csh(1), ps(1), kill(2), sigvec(2)
BUGS
A replacement for ``kill 0'' for csh(1) users should be provided.
4th Berkeley Distribution April 20, 1986 KILL(1)