Well normally you input or output (to) a file, meaning either read/write to it, not interpret its content... why put $HOME in a file rather than straight ahead
? (because of the garbage .(dot) stuff?) or not use
before to use testdata
Hi,
Could anyone help me in understanding what I am missing..
I have a text file with the following info.
INFILE=>
#Name Variable=<value>
#---------------------------------
name1 inargs="-a Filename1.$VAR.csv -f Filename2.$VAR.csv -c File.c"
name1 ... (4 Replies)
file.txt contains
------------------
sat1 1300
#sat2 2400
sat3
sat4 500
sat5
I need to write a shell script that will output like the below
#output
sat1.ksh 1300
sat3.ksh
sat4.ksh 500
sat5.ksh
my try
------- (4 Replies)
...
declare vINIFILE
vINIFILE=$1
...
echo "The name of the File is $vINIFILE" >>mail_tmp
echo "" >> mail_tmp.$$
...
grep RUNJOB=0 $vINIFILE >>tmp_filter
...
So the strange is in echo-statement I get the correct output for $vINIFILE wrtitten into the file mail_tmp. But the... (2 Replies)
Hi I am using KSH and trying to read variables from a csv file. I've set the IFS=, and it workds. Problem is where one of the values is text containing a comma. For example the following lines exist in my file. How can I read everything between the quotes into a single variable?
APW13812,,1... (2 Replies)
I have output from luxadm display commands as below :-
DEVICE PROPERTIES for disk: /dev/rdsk/c10t60020F200000C8083F951F4C00012863d0s2
Vendor: SUN
Product ID: T300
Revision: 0201
Serial Num: Unsupported
Unformatted capacity:... (0 Replies)
Hi Gurus,
I have a file named log with 2 lines
Each line is a file name. eg
$ cat log
monday
tuesday
I need to read log and assign each output(filename) to a different variable.
The following doesn't work:-
while read A B
do
echo " a is ${A} "
echo " b is ${B} "
done <... (6 Replies)
I have a file that has four values on each line and I'd like to give each column a variable name and then use those values in each step of a loop. In bash, I believe you could use a while loop to do this or possibly a cat command, but I am super new to programming and I'm having trouble decoding... (2 Replies)
Hello all,
I've been out of programming for awhile so sorry about the stupid, elementary question.
I'm trying to read two inputs and compare them to a list entered as a parameter via the terminal. The script is
#!/bin/bash
read -p "Enter the numbers" NUM1 NUM2
for VALUE in $@; do
... (6 Replies)
Hi,
I am trying to write a shell script to help with some digital signature work currently being undertaken where we have a file that contains a number of rows ending with ^M.
What I need to do is concatenate this using shell scripting and retain the control character. E.G.
abc^M... (5 Replies)
Hi,
I managed to read and print variable as shown in the below code.
table_name=table1,table2,table3
i=0
IFS=","
for i in $table_name
do
echo $i
done
Is there a way how I can read more than one variable. For example I need to read 2 variables and populate the output... (6 Replies)
Discussion started by: shash
6 Replies
LEARN ABOUT CENTOS
systemd-readahead-done.timer
SYSTEMD-READAHEAD-REPLAY.SERVICE(8) systemd-readahead-replay.service SYSTEMD-READAHEAD-REPLAY.SERVICE(8)NAME
systemd-readahead-replay.service, systemd-readahead-collect.service, systemd-readahead-done.service, systemd-readahead-done.timer, systemd-
readahead - Disk read ahead logic
SYNOPSIS
systemd-readahead-replay.service
systemd-readahead-collect.service
systemd-readahead-done.service
systemd-readahead-done.timer
/usr/lib/systemd/systemd-readahead/systemd-readahead [OPTIONS...] COMMAND [DIRECTORY | FILE]
DESCRIPTION
systemd-readahead-collect.service is a service that collects disk usage patterns at boot time. systemd-readahead-replay.service is a
service that replays this access data collected at the subsequent boot. Since disks tend to be magnitudes slower than RAM, this is intended
to improve boot speeds by pre-loading early at boot all data on disk that is known to be read for the complete boot process.
systemd-readahead-done.service is executed a short while after boot completed and signals systemd-readahead-collect.service to end data
collection. On this signal, this service will then sort the collected disk accesses and store information about them in /.readahead.
Normally, both systemd-readahead-collect.service and systemd-readahead-replay.service are activated at boot so that access patterns from
the preceding boot are replayed and new data collected for the subsequent boot. However, on read-only media where the collected data cannot
be stored, it might be a good idea to disable systemd-readahead-collect.service.
On rotating media, when replaying disk accesses at early boot, systemd-readahead-replay.service will order read requests by their location
on disk. On non-rotating media, they will be ordered by their original access timestamp. If the file system supports it,
systemd-readahead-collect.service will also defragment and rearrange files on disk to optimize subsequent boot times.
OPTIONS
systemd-readahead understands the following options:
-h, --help
Prints a short help text and exits.
--max-files=
Maximum number of files to read ahead. Only valid for thes collect command.
--file-size-max=
Maximum size of files in bytes to read ahead. Only valid for the collect and replay commands.
--timeout=
Maximum time in microseconds to spend collecting data. Only valid for the collect command.
COMMANDS
The following commands are understood by systemd-readahead:
collect [DIRECTORY]
Collect read-ahead data on early boot. When terminating, it will write out a pack file to the indicated directory containing the
read-ahead data.
replay [DIRECTORY]
Perform read-ahead on the specified directory tree.
analyze [FILE]
Dumps the content of the read-ahead pack file to the terminal. For each file, the output lists approximately how much will be read
ahead by the replay command.
SEE ALSO systemd(1)systemd 208SYSTEMD-READAHEAD-REPLAY.SERVICE(8)