#! /bin/bash
head -5 $1
echo "remove $1 ?"
read answer
if
then
echo invalid answer
elif
rm $1
echo "$1 is deleted"
elif
then
echo file is not deleted
else
echo "invalid answer"
fi
What i really want this to do is to ask to delete the file or not..it says something wrong... (1 Reply)
#! /bin/bash
USAGE=" | ]
if
then
echo "$USAGE"
exit 1
fi
while getopts lb: OPTION
do
case $(OPTION)in
a) echo Hi there!
exit 2;;
b) echo hello
o) OARG=$OPTARG;;
\?)echo "$USAGE" ;;
exit 2;;
esac
done
shift `expr... (1 Reply)
can anyone tell me why this code doesn't work how its supposed to, its the hangman game but it doesn't play how its supposed to
#!/bin/bash
NoAttempts="0"
livesgiven="5"
LivesRemain=$livesgiven
LettersAttempted=""
wordfile=words
numwords=0
function menu()
{
clear
cat << menu... (1 Reply)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
ls -ld htdocs
drwxr-x--- 3 root root 8192 2006-11-19 10:41 htdocs
How would a host administrator... (1 Reply)
hi whats wrong in below??
CHECK=M10;
if ;
then
echo "hello hi";
else
echo "how are u hello hi";
fi
I am getting error as
./test.sh: line 2: '
./test.sh: line 2: M10: command not found
./test.sh: line 2: M10: command not found
./test.sh: line 2: M10: command not found (8 Replies)
whats wrong with the syntax, just the if-else part? Struggling for a bit with this now..I`m simply trying to increment 3 variables based on missing data, matches or mismatches for i and j
.......
{for(i=1;i<=NF;i++)
for(j=i+1;j<=NF;j++)
{ if(i=="" || $j=="") m++
... (1 Reply)
Hi
I am pretty new to bash scripting.I am trying to write the if statement in bash and it give me error. Can you please help me what I am doing wrong in If statement?
Code:
if && &&
then
fector=$kk;
divide=$DB_SIZE/$kk;
echo "factor value:$fector"
echo"divide... (1 Reply)
Hi
I am pretty new to bash scripting.I am trying to write the if statement in bash and it give me error. Can you please help me what I am doing wrong in If statement?
if && &&
then
fector=$kk;
divide=$DB_SIZE/$kk;
echo "factor value:$fector"
echo"divide value:$divide"... (1 Reply)
Hi
I am pretty new to bash scripting.I am trying to write the if statement in bash and it give me error. Can you please help me what I am doing wrong in If statement?
if && &&
then
fector=$kk;
divide=$DB_SIZE/$kk;
echo "factor value:$fector"
echo"divide value:$divide"... (4 Replies)
Discussion started by: Gevni
4 Replies
LEARN ABOUT CENTOS
trace-cmd-hist
TRACE-CMD-HIST(1)TRACE-CMD-HIST(1)NAME
trace-cmd-hist - show histogram of events in trace.dat file
SYNOPSIS
trace-cmd hist [OPTIONS][input-file]
DESCRIPTION
The trace-cmd(1) hist displays a histogram form from the trace.dat file. Instead of showing the events as they were ordered, it creates a
histogram that can be displayed per task or for all tasks where the most common events appear first. It uses the function tracer and call
stacks that it finds to try to put together a call graph of the events.
OPTIONS -i input-file
By default, trace-cmd hist will read the file trace.dat. But the -i option open up the given input-file instead. Note, the input file
may also be specified as the last item on the command line.
-P
To compact all events and show the call graphs by ignoring tasks and different PIDs, add the -P to do so. Instead of showing the task
name, it will group all chains together and show "<all pids>".
SEE ALSO trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1),
trace-cmd-split(1), trace-cmd-listen(1)AUTHOR
Written by Steven Rostedt, <rostedt@goodmis.org[1]>
RESOURCES
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git
COPYING
Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL).
NOTES
1. rostedt@goodmis.org
mailto:rostedt@goodmis.org
06/11/2014 TRACE-CMD-HIST(1)