Hello. Well no because I am new to shell scripting and doesn't know how to compare and make such logic. Any input would be highly appreciable.
I know I shouldn't be doing this and should make you work it out yourself, but I'll bend the rules a bit IF you go though the code yourself try to understand it yourself with the minimum of guidance... awk -f xtreme.awk check.txt output.txt where xtreme.awk is:
produces:
if $1 = "123x456", how can I test for the non-numeric character 'x' in that string. I've tried expr with "" but it did not find the x. Any ideas? Can this perhaps be done with sed?
Thanks. (2 Replies)
Variations of multiple renames seems to come up a lot but i can't find the answer to this situation.
Tidying up a directory where people rename files to .working, .bob, .attempt1 & so on.
what i am trying to do is: list the file type, & rename from ".whatever" to .fixed.
As the ".whatever" is... (5 Replies)
Hi
I am very new to linux and scripting.
I need to replace numbers abc with number xyz inputting from a reference file.
I used the following command -
sed "s/$grd/$lab/" , where $grd and $lab comes from reference file.
The problem is the above line doesnt take care of space..... (1 Reply)
Hi All,
I would like to convert my below csh script to Perl.
Can any expert help ?
# To check for numeric input
set tested1 = `echo "$tested"| awk '/^+$/'`;
# To remove un-neccessary zeros
set tested2 = `echo "$tested"|awk '{print $0+0}'`; (3 Replies)
During a file-system cleanup I noticed a strange behavior of awk (HP-UX 11iv3 / IA64). When summing up the size of files in one directory it gives different numbers when using print as opposed to printf:
find . -type f -name '*.dmp.Z' -mtime +35 -exec ls -l {} \+ | \
awk 'BEGIN{ OFMT="%f" } {... (1 Reply)
Hi all,
I'm trying to implement a linear congruential pseudorandom number generator (<http://en.wikipedia.org/wiki/Linear_congruential_generator>), since $RANDOM and /dev/random aren't standardized. I'm referring to the Shell & Utilities volume of POSIX.1-2008, but I'm running into some odd... (3 Replies)
Hi All,
I am new here but I have a scripting question that I can't seem to figure out with the "find" cmd.
What I am trying to do is to only have to run a single find cmd parsing the directories and output the different file types to induvidual files and I have been running into problems.... (3 Replies)
Hi,
I want to grep multiple patterns from multiple files and save to multiple outputs. As of now its outputting all to the same file when I use this command.
Input : 108 files to check for 390 patterns to check for. output I need to 108 files with the searched patterns.
Xargs -I {} grep... (3 Replies)
I'm trying to find a way to search a range of similar words in a file. I tried using sed but can't get it right:sed 's/\(ca01\)*//'It only removes "ca01" but leaves the rest of the word. I still want the rest of the information on the lines just not these specific words listed below. Any... (3 Replies)
Hi guys,
I have a text file named file1.txt that is formatted like this:
001 , ID , 20000
002 , Name , Brandon
003 , Phone_Number , 616-234-1999
004 , SSNumber , 234-23-234
005 , Model , Toyota
007 , Engine ,V8
008 , GPS , OFF
and I have file2.txt formatted like this:
... (2 Replies)
Discussion started by: An0mander
2 Replies
LEARN ABOUT DEBIAN
vrele
VRELE(9) BSD Kernel Developer's Manual VRELE(9)NAME
vput, vrele, vunref -- decrement the use count for a vnode
SYNOPSIS
#include <sys/param.h>
#include <sys/vnode.h>
void
vput(struct vnode *vp);
void
vrele(struct vnode *vp);
void
vunref(struct vnode *vp);
DESCRIPTION
Decrement the v_usecount field of a vnode.
vp the vnode to decrement
The vrele() function takes an unlocked vnode and returns with the vnode unlocked.
The vput() function should be given a locked vnode as argument, the vnode is unlocked after the function returned. The vput() is opera-
tionally equivalent to calling VOP_UNLOCK(9) followed by vrele(9), with less overhead.
The vunref() function takes a locked vnode as argument, and returns with the vnode locked.
Any code in the system which signified its use of a vnode by usecount should call one of the listed function to decrement use counter. If
the v_usecount field of the non-doomed vnode reaches zero, then it will be inactivated and placed on the free list. Since the functions
might need to call VOPs for the vnode, the Giant mutex should be conditionally locked around the call.
The hold count for the vnode is always greater or equal to the usecount. Non-forced unmount fails when mount point owns a vnode that has
non-zero usecount, see vflush(9).
SEE ALSO vget(9), vnode(9), vref(9), vrefcnt(9)AUTHORS
This manual page was written by Doug Rabson and
Konstantin Belousov.
BSD November 20, 2010 BSD