7 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
I'm curious to know how do I add an empty log file (test1.log) to an existing text file to monitor all the changes made to a.txt.
Is this expression
export PATH=$PATH:/home/test1.log
right to be added to the text file a.txt? (5 Replies)
Discussion started by: TestKing
5 Replies
2. UNIX for Beginners Questions & Answers
Hello,
I am creating a file with all the source folders included in my git branch, when i grep for the used source, i found source included as relative path instead of absolute path, how can convert relative path to absolute path without changing directory to that folder and using readlink -f ? ... (4 Replies)
Discussion started by: Sekhar419
4 Replies
3. UNIX for Advanced & Expert Users
Currently I am using this laborious command
lvdisplay | awk '/LV Path/ {p=$3} /LV Name/ {n=$3} /VG Name/ {v=$3} /Block device/ {d=$3; sub(".*:", "/dev/dm-", d); printf "%s\t%s\t%s\n", p, "/dev/mapper/"v"-"n, d}'
Would like to know if there is any shorter method to get this mapping of... (2 Replies)
Discussion started by: royalibrahim
2 Replies
4. OS X (Apple)
Hello,
Glad I found this forum....
Well I'm starting using UNIX tools in macOS for bioinformatics (Python....).
I know that in UNIX every installed tools go to usr/bin.... But since in mac I do not have access to it I wanted to know were to create and install tools? Can I recreate a pseudo UNIX... (3 Replies)
Discussion started by: 454rocks
3 Replies
5. Shell Programming and Scripting
Hi,
I have a file abcd.txt which has contents in the form of full path file names i.e.
$home> vi abcd.txt
/a/b/c/r1.txt
/q/w/e/r2.txt
/z/x/c/r3.txt
Now I want to retrieve only the directory path name for each row
i.e
/a/b/c/
/q/w/e/
How to get the same through shell script?... (7 Replies)
Discussion started by: royzlife
7 Replies
6. UNIX for Dummies Questions & Answers
using OS X and the Terminal, I'd like to find all locked files in a specified directory, unlock them, and print a list of those files that were unlocked
how can I do this?
I'm familiar with chflags nouchg for unlocking one file but not familiar with unix enough to do what I'd like.
Thanks! (0 Replies)
Discussion started by: alternapop
0 Replies
7. UNIX for Dummies Questions & Answers
Hi,
I have a file with about 60 lines of path:
app-defaults/boxXYZ.......
I want to change this to /my/path/goes/here/app-defaults/boxXYZ, but of course vi doesn't like the regualr :s/old/new/ command.
Is there any other quick way to do this?
Thanks ;) (2 Replies)
Discussion started by: Yinzer955i
2 Replies
abs(3C) Standard C Library Functions abs(3C)
NAME
abs, labs, llabs - return absolute value of integer
SYNOPSIS
#include <stdlib.h>
int abs(int val);
long labs(long lval);
long long llabs(long long llval);
DESCRIPTION
The abs() function returns the absolute value of its int operand.
The labs() function returns the absolute value of its long operand.
The llabs() function returns the absolute value of its long long operand.
USAGE
In 2's-complement representation, the absolute value of the largest magnitude negative integral value is undefined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
attributes(5), standards(5)
SunOS 5.11 24 Jul 2002 abs(3C)