10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies
2. Shell Programming and Scripting
Look at the following data file（cou.data） which has four fields separated by tab.
Four fields are country name, land area, population, continent where it belongs.
As for country name or continent name which has two words, two words are separated by space.
(Data are not accurately... (1 Reply)
Discussion started by: chihuyu
1 Replies
3. Shell Programming and Scripting
Hi there,
I'm running into a very weird situation. Let's forget about the purpose of my initial script please. I noticed the bug whatever I'm trying to do.
I'm on an old server running bash 3.1.17.
Say we have the following script :
foo:~# cat /tmp/test
#!/bin/bash
f1() {
local... (9 Replies)
Discussion started by: chebarbudo
9 Replies
4. Shell Programming and Scripting
This really puzzles me. The following code gives me the error 'expr: syntax error' when I try to do multi-line comment using here document
<<EOF
echo "Sum is: `expr $1 + $2`"
EOF
Even if I explicitly comment out the line containing the expr using "#", the error message would still exist... (3 Replies)
Discussion started by: royalibrahim
3 Replies
5. Solaris
Need to find a way to import an LP printers.conf file to CUPS. I have some new Solaris 11.1 boxes that need to have 300 printers added. (0 Replies)
Discussion started by: os2mac
0 Replies
6. UNIX for Advanced & Expert Users
I've posted about this before, but only recently narrowed the problem down to a specific cause.
Ok, first of all, the behavior:
It occurs when autocompletion brings up its list (not when there is only a single option). Basically, if I were to type, say,
cd ~/<TAB>
I would get something... (2 Replies)
Discussion started by: marshaul
2 Replies
7. Shell Programming and Scripting
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
Discussion started by: shis100
7 Replies
8. Shell Programming and Scripting
Is it normal behavior for a shell script that terminates to terminate its parent shell when executed with the "." option?
For example, if I have the example script (we'll name it ex.sh):
#!/bin/sh
if
then
echo "Bye."
exit 2
fi
And I execute it like this:
>./ex.sh
It... (6 Replies)
Discussion started by: DreamWarrior
6 Replies
9. Solaris
Hello everyone.
I beg your guys pardon please.
I try to ls -al in many path/directories. So, I put the code in text file which look like below;
ls -al /
ls -al /etc
ls -al /etc/default
...
however, when I paste it to Solaris over SecureCRT, it seems the code was escaped from "-" to... (0 Replies)
Discussion started by: Smith
0 Replies
10. Shell Programming and Scripting
Hi there,
I have a strange problem and I cannot figure it out what I am doing wrong here.
Let me try to picture it.
In principle it is prety straight forward, but something odd is happening.
Here is part of the input file snmp_alm.cfg:
... (2 Replies)
Discussion started by: ejdv
2 Replies
getsockopt(2) System Calls Manual getsockopt(2)
Name
getsockopt, setsockopt - get or set options on sockets
Syntax
#include <sys/types.h>
#include <sys/socket.h>
getsockopt(s, level, optname, optval, optlen)
int s, level, optname;
char *optval;
int *optlen;
setsockopt(s, level, optname, optval, optlen)
int s, level, optname;
char *optval;
int optlen;
Description
The and system calls manipulate options associated with a socket. Options can exist at multiple protocol levels; they are always present
at the uppermost socket level.
When manipulating socket options, the level at which the option resides and the name of the option must be specified. To manipulate
options at the socket level, level is specified as SOL_SOCKET. To manipulate options at any other level, the protocol number of the appro-
priate protocol controlling the option must be supplied. For example, to indicate an option is to be interpreted by the TCP protocol,
level should be set to the protocol number of TCP. For further information, see
The parameters optval and optlen are used to access option values for For they identify a buffer in which the values for the requested
options are to be returned. For optlen is a value-result parameter, initially containing the size of the buffer pointed to by optval and
modified on return to indicate the actual size of the value returned. If no option value is to be supplied or returned, optval can be sup-
plied as 0.
The optname parameter and any specified options are passed uninterpreted to the appropriate protocol module for interpretation. The
include file <sys/socket.h> contains definitions for socket level options. For further information, see Options at other protocol levels
vary in format and name. Consult the or reference pages for details.
Return Values
A zero is returned if the call succeeds, and -1 is returned if it fails.
Diagnostics
The call fails under the following conditions:
[EBADF] The argument s is not a valid descriptor.
[ENOTSOCK] The argument s is a file, not a socket.
[ENOPROTOOPT] The option is unknown.
[EFAULT] The address pointed to by optval is not in a valid part of the process address space. For this error can also be returned
if optlen is not in a valid part of the process address space.
See Also
fcntl(2), socket(2), getprotoent(3n), Guide to the Data Link Interface
getsockopt(2)
