Checking for substring in a loop takes too long to complete.
I need to check if the files returned by ls command in the below script is a sub-string of the argument passed to the script i.e $1
The below script works fine but is too slow.
If the ls command take 12 secs to complete printing all files with while loop then; using posix substring check with grep -q in the script increases the total time to about 140 seconds.
If there a way to optimize the script for quicker results ?
Last edited by mohtashims; 10-15-2019 at 03:53 AM..
Hello,
I have a C program that takes anywhere from 5 to 100 arguments and I'd like to run it from a script that makes sure it doesnt take too long to execute. If the C program takes more than 5 seconds to execute, i would like the shell script to kill it and return a short message to the user. ... (3 Replies)
Hi all,
I wrote this shell script to validate filed numbers for input file. But it take forever to complete validation on a file. The average speed is like 9mins/MB.
Can anyone tell me how to improve the performance of a shell script?
Thanks (12 Replies)
Hello,
like the title says, how can i measure the time it takes to load a module in Linux, and how how can i measure the time it takes to load a statically compiled module.
/Best Regards Olle
---------- Post updated at 01:13 PM ---------- Previous update was at 11:54 AM ----------
For... (0 Replies)
Dear experts
I have a 200MG text file in this format:
text \tab number
I try to sort using options -fd and it takes very long! is that normal or I can speed it up in some ways?
I dont want to split the file since this one is already splitted.
I use this command: sort -fd file >... (12 Replies)
Hi,
we currently having a issue where when we send jobs to the server for the application lawson, it is taking a very long time to complete. here are the last few lines of the database log.
2012-09-18-10.35.55.707279-240 E244403536A576 LEVEL: Warning
PID : 950492 ... (1 Reply)
Hi,
I wish to check the return value for wget $url.
However, some urls are designed to take 45 minutes or more to return.
All i need to check if the URL can be reached or not using wget.
How can i get wget to return the value in a few seconds ? (8 Replies)
Hi,
Below is my find command
find /opt/app/websphere -name myfolder -perm -600 | wc -l
At time it even takes 20 mins to complete.
my OS is : SunOS mypc 5.10 Generic_150400-09 sun4v sparc SUNW,T5440 (10 Replies)
Hi,
I am trying to search for a Directory called "mont" under a directory path "/opt/app/var/dumps"
Although "mont" is in the very parent directory called "dumps" i.e "/opt/app/var/dumps/mont" and it can never be inside any Sub-Directory of "dumps"; my below find command which also checks... (5 Replies)
Hi,
I have a lengthy script which i have trimmed down for a test case as below.
more run.sh
#!/bin/bash
paths="allpath.txt"
while IFS= read -r loc
do
echo "Working on $loc"
startdir=$loc
find "$startdir" -type f \( ! -name "*.log*" ! -name "*.class*" \) -print |
while read file
do... (8 Replies)
Good evening.
because the folder has thousand of files it takes too long and have some trouble to get the largest files and then compress files or delete it, for instance
find . -size +10000000c -exec ls -ld {} \; |sort -k5n | grep -v .gz
The above commad took an hour and i have to cancel... (10 Replies)
Discussion started by: alexcol
10 Replies
LEARN ABOUT OSX
script
SCRIPT(1) BSD General Commands Manual SCRIPT(1)NAME
script -- make typescript of terminal session
SYNOPSIS
script [-akq] [-t time] [file [command ...]]
DESCRIPTION
The script utility makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an
interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1).
If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the file typescript.
If the argument command is given, script will run the specified command with an optional argument vector instead of an interactive shell.
The following options are available:
-a Append the output to file or typescript, retaining the prior contents.
-k Log keys sent to program as well as output.
-q Run in quiet mode, omit the start and stop status messages.
-t time
Specify time interval between flushing script output file. A value of 0 causes script to flush for every character I/O event. The
default interval is 30 seconds.
The script ends when the forked shell (or command) exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-D (if
ignoreeof is not set) for the C-shell, csh(1)).
Certain interactive commands, such as vi(1), create garbage in the typescript file. The script utility works best with commands that do not
manipulate the screen. The results are meant to emulate a hardcopy terminal, not an addressable one.
ENVIRONMENT
The following environment variable is utilized by script:
SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most
shells set this variable automatically).
SEE ALSO csh(1) (for the history mechanism).
HISTORY
The script command appeared in 3.0BSD.
BUGS
The script utility places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects.
It is not possible to specify a command without also naming the script file because of argument parsing compatibility issues.
When running in -k mode, echo cancelling is far from ideal. The slave terminal mode is checked for ECHO mode to check when to avoid manual
echo logging. This does not work when in a raw mode where the program being run is doing manual echo.
BSD January 22, 2004 BSD