Is there some way I can have a script monitor the newest line of a log file until a certain entry gets placed in the log?
Basically I want to start this script, and have it spit up the last 10 lines or so to a browser via AJAX... the AJAX is not my problem though, as I have no idea how to go... (4 Replies)
Hello all,
I have a file - 12.txt
cat 12.txt
===============================================
Number of executions = 2 Total execution time (sec.ms) = 0.009883
Number of executions = 8 Total execution time (sec.ms) = 0.001270
Number of... (23 Replies)
Hi All,
I am not much strong in shell scripting...
I am using sed command in my script to find and replace a string.......
This is how script looks :
#############
#!/usr/bin/ksh
CONFIG_FILE=iom_test.txt
FIND=`echo "NIS_FTP_SERVER1=123.456.iom.com"`
REPLACE=`echo... (2 Replies)
I am trying to use this script however it is not running well
#!/bin/sh
tail -f filename | grep -i -E 'error|warning'
the code does not display the first 10 lines of the file that I want to check
since after the file grow, it cannot grep "warning" as well
#!/bin/sh
A=`tail -f filename... (5 Replies)
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
Hi all,
I was wondering why tail -n 2 filename produce an error when I manage to do similar command on head -n 2 filename
SunOS{type8code0}: tail -n 2 filename
usage: tail ]
tail ] (2 Replies)
If I enter (simplified):
find . -printf "%p\n"
then all files in the output are prepended by a "." like
./local/share/test23.log
How can achieve that
a.) the leading "./" is omitted
and/or
b.) the full path to the current directory is inserted (enclosed by brackets and a blank)... (1 Reply)
I am facing this weird issue where the script is working fine from the command line but when I am executing it from cron though it is working fine but the "if" loop is processing else part though I know that the if part of the logic is true and ideally the loop should execute the if portion.
... (3 Replies)
#!/bin/bash -i
SAVEIFS=$IFS
IFS=$"\n\b"
picc=$*
if ; then
echo $TDATE
if ; then
touch dummy
touch -t "tdate" dummy
touch -r "dummy" "$picc"
else
echo -e "No mod date value to apply. If there is one in your shell,\ninvoke \eStarted asking advice on this (on Linuxquestions.org).... (9 Replies)
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies
LEARN ABOUT MOJAVE
while
while(n) Tcl Built-In Commands while(n)
__________________________________________________________________________________________________________________________________________________NAME
while - Execute script repeatedly as long as a condition is met
SYNOPSIS
while test body
_________________________________________________________________DESCRIPTION
The while command evaluates test as an expression (in the same way that expr evaluates its argument). The value of the expression must a
proper boolean value; if it is a true value then body is executed by passing it to the Tcl interpreter. Once body has been executed then
test is evaluated again, and the process repeats until eventually test evaluates to a false boolean value. Continue commands may be exe-
cuted inside body to terminate the current iteration of the loop, and break commands may be executed inside body to cause immediate termi-
nation of the while command. The while command always returns an empty string.
Note: test should almost always be enclosed in braces. If not, variable substitutions will be made before the while command starts execut-
ing, which means that variable changes made by the loop body will not be considered in the expression. This is likely to result in an
infinite loop. If test is enclosed in braces, variable substitutions are delayed until the expression is evaluated (before each loop iter-
ation), so changes in the variables will be visible. For an example, try the following script with and without the braces around $x<10:
set x 0
while {$x<10} {
puts "x is $x"
incr x
}
EXAMPLE
Read lines from a channel until we get to the end of the stream, and print them out with a line-number prepended:
set lineCount 0
while {[gets $chan line] >= 0} {
puts "[incr lineCount]: $line"
}
SEE ALSO
break(n), continue(n), for(n), foreach(n)
KEYWORDS
boolean value, loop, test, while
Tcl while(n)