12-15-2015
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I am using korn shell unix.
I have a script that I am working with to do a check for me using a text file.
#finds "Time" from the text file and cuts the second field from the #line
A= grep Time test.txt | cut -f2
# the "#Missing" is being pulled from the second field of the text... (1 Reply)
Discussion started by: cspcspcsp
1 Replies
2. UNIX for Dummies Questions & Answers
I have a variable with a value of "05". When I add one to that variable, using the command: CURR_YY=`expr $CURR_YY + 1`, I get the value of "6", losing the leading zero (which is needed for passing to another script). How do I keep the leading zero?
Thank you! (10 Replies)
Discussion started by: cbarker
10 Replies
3. Shell Programming and Scripting
Hi all,
I have a variable say var1 (output from somewhere, which I can't change)which store something like this:
echo $var1
name=fred
age=25
address="123 abc"
password=pass1234
how can I make the variable $name, $age, $address and $password contain the info?
I mean do this in a... (1 Reply)
Discussion started by: freddy1228
1 Replies
4. Shell Programming and Scripting
Hello,
I would like to define a variable based on another variable:
a=5
b$a=100
This does not work. What is the right way to do it?
Thanks
---------- Post updated at 07:37 PM ---------- Previous update was at 07:33 PM ----------
Found my answer with the search function (did not... (0 Replies)
Discussion started by: jolecanard
0 Replies
5. Shell Programming and Scripting
TO THE ALMIGHTY FORUM ,
though i have already posted the same question on hex to binary thread , i am posting here also for other beginners who may benefit from this thread...
I have a 32 bit binary containing a series of 1' and 0's , and i am stuck... (2 Replies)
Discussion started by: venu
2 Replies
6. Shell Programming and Scripting
Hi, Unix Gurus,
In our existing file, there is a script like
#!/bin/sh
step=${1:-0}
cur_step=10
if
...
My question is what's "${1:-0}" mean? I know it defines a variable but I don't know what's (1:-0) mean?
:wall:
Thanks in advance. (2 Replies)
Discussion started by: ken002
2 Replies
7. Shell Programming and Scripting
HI
I have file A.txt
_1A
_2A
_3A
_4A
I want define all as different variable.
$1A=_1A
$2B=_2A
$3C=_3A
$4D=_4A
Now i can use any variable in my script. (3 Replies)
Discussion started by: pareshkp
3 Replies
8. Shell Programming and Scripting
Hello,
I would like to modify an existing script of mine that uses a manually defined "MCVERSION" variable and make it define that variable instead based on this JSON file stored online:
https://s3.amazonaws.com/Minecraft.Download/versions/versions.json
Within that JSON, I 'm looking for... (4 Replies)
Discussion started by: nbsparks
4 Replies
9. UNIX for Beginners Questions & Answers
Hi All ,
I am having an input file as stated below
5728 U_TOP_LOGIC/U_CM0P/core/u_cortexm0plus/u_top/u_sys/u_core/r03_q_reg_20_/Q 011
611 U_TOP_LOGIC/U_CM0P/core/u_cortexm0plus/u_top/u_sys/u_core/r04_q_reg_20_/Q 011
3486... (4 Replies)
Discussion started by: kshitij
4 Replies
LEARN ABOUT LINUX
mkdirat
MKDIRAT(2) Linux Programmer's Manual MKDIRAT(2)
NAME
mkdirat - create a directory relative to a directory file descriptor
SYNOPSIS
#include <fcntl.h> /* Definition of AT_* constants */
#include <sys/stat.h>
int mkdirat(int dirfd, const char *pathname, mode_t mode);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
mkdirat():
Since glibc 2.10:
_XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
Before glibc 2.10:
_ATFILE_SOURCE
DESCRIPTION
The mkdirat() system call operates in exactly the same way as mkdir(2), except for the differences described in this manual page.
If the pathname given in pathname is relative, then it is interpreted relative to the directory referred to by the file descriptor dirfd
(rather than relative to the current working directory of the calling process, as is done by mkdir(2) for a relative pathname).
If pathname is relative and dirfd is the special value AT_FDCWD, then pathname is interpreted relative to the current working directory of
the calling process (like mkdir(2)).
If pathname is absolute, then dirfd is ignored.
RETURN VALUE
On success, mkdirat() returns 0. On error, -1 is returned and errno is set to indicate the error.
ERRORS
The same errors that occur for mkdir(2) can also occur for mkdirat(). The following additional errors can occur for mkdirat():
EBADF dirfd is not a valid file descriptor.
ENOTDIR
pathname is relative and dirfd is a file descriptor referring to a file other than a directory.
VERSIONS
mkdirat() was added to Linux in kernel 2.6.16.
CONFORMING TO
POSIX.1-2008.
NOTES
See openat(2) for an explanation of the need for mkdirat().
SEE ALSO
mkdir(2), openat(2), path_resolution(7)
COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2009-12-13 MKDIRAT(2)