Trying to search a log file for a string, starting from a certain point in the log file. I want to return the number of lines that contain the search string and the total number of lines in the log file. Here's the part of the script I'm having problems with:
set -- $(awk -v... (12 Replies)
Hello,
I'm trying to write a bash script that will query the current system time (OS X 10.6.6) and then convert the output from HH:MM:SS into time in seconds. The output of the system time command (systemsetup -gettime) is returned as:
Time: HH:MM:SS
so I wanted to use awk -F: to grab... (5 Replies)
EDIT: This has been SOLVED. Thanks!
Greetings everyone,
I've posted a few threads with some quick help questions, and this is another one of those. I can't post enough gratitude for those much more knowledgeable than myself who are willing to give good advice for my minor issues. Now,... (2 Replies)
So I am a newbie obviously but I need some help.
I am trying to run a script to check that the number of fields in a database is equal to 4, if not they should try again and run an appropriate database file. The fields are separated by a semi colon. I've tried a lot of things, this what I'm... (3 Replies)
Hi ! I'm working into my first bash script to make some xml modification and it's going to make me crazy lol .. so I decide to try into this forum to take some ideas from people that really know about this!
This is my situation I've and xml file with a lots of positional values with another tags... (9 Replies)
This is the final first release of the dynamic menu generator for pekwm (WM).
#!/bin/bash
function param_val {
awk "/^${1}=/{gsub(/^${1}="'/,""); print; exit}' $2
}
echo "Dynamic {"
for CF in `ls -c1 /usr/share/applications/*.desktop`
do
name=$(param_val Name $CF)
... (3 Replies)
I have written a script which works fine, to remove patterns contained in EXCLUDE.DAT from input.txt
awk 'BEGIN {n=0;while (getline < "EXCLUDE.DAT" > 0){ex=$0;n++}} {for(var in ex){print var "-" ex $0 ;i++}}' input.txt
The last problem I need to solve is how to pass the file... (3 Replies)
I have the following script set up and working properly in bash. It basically copies a set of lines which match "AS1100002" from one file and replaces the same lines in another file.
awk -vN=AS1100002* 'NR==FNR { if($1 ~ N)K=$0; next }
{ if($1 in K) $0=K; print }' $datadir/file1... (7 Replies)
Hello im new here... Im trying to read file and create folders from words in it but i get this for loop error
awk : line 3 : syntax error at or near for
my code is..
#!/bin/bash
begin
for (( i=1;i<=5;i++));
do
awk -v i=$i $0 { print $i }
mkdir $i
done
{print $i}
end {}
i have... (7 Replies)
Hi,
I have 100 files containing different values in single column,
I want to split those files in two separate files (file2 and file3) based on average value of first column of each file,
for those files I am working on the following script
#bin/bash
for memb in $(seq 1 100)
do
awk... (4 Replies)
Discussion started by: dsp80
4 Replies
LEARN ABOUT CENTOS
foreach
foreach(n) Tcl Built-In Commands foreach(n)
__________________________________________________________________________________________________________________________________________________NAME
foreach - Iterate over all elements in one or more lists
SYNOPSIS
foreach varname list body
foreach varlist1 list1 ?varlist2 list2 ...? body
_________________________________________________________________DESCRIPTION
The foreach command implements a loop where the loop variable(s) take on values from one or more lists. In the simplest case there is one
loop variable, varname, and one list, list, that is a list of values to assign to varname. The body argument is a Tcl script. For each
element of list (in order from first to last), foreach assigns the contents of the element to varname as if the lindex command had been
used to extract the element, then calls the Tcl interpreter to execute body.
In the general case there can be more than one value list (e.g., list1 and list2), and each value list can be associated with a list of
loop variables (e.g., varlist1 and varlist2). During each iteration of the loop the variables of each varlist are assigned consecutive
values from the corresponding list. Values in each list are used in order from first to last, and each value is used exactly once. The
total number of loop iterations is large enough to use up all the values from all the value lists. If a value list does not contain enough
elements for each of its loop variables in each iteration, empty values are used for the missing elements.
The break and continue statements may be invoked inside body, with the same effect as in the for command. Foreach returns an empty string.
EXAMPLES
This loop prints every value in a list together with the square and cube of the value:
set values {1 3 5 7 2 4 6 8} ;# Odd numbers first, for fun!
puts "Value Square Cube" ;# Neat-looking header
foreach x $values { ;# Now loop and print...
puts " $x [expr {$x**2}] [expr {$x**3}]"
}
The following loop uses i and j as loop variables to iterate over pairs of elements of a single list.
set x {}
foreach {i j} {a b c d e f} {
lappend x $j $i
}
# The value of x is "b a d c f e"
# There are 3 iterations of the loop.
The next loop uses i and j to iterate over two lists in parallel.
set x {}
foreach i {a b c} j {d e f g} {
lappend x $i $j
}
# The value of x is "a d b e c f {} g"
# There are 4 iterations of the loop.
The two forms are combined in the following example.
set x {}
foreach i {a b c} {j k} {d e f g} {
lappend x $i $j $k
}
# The value of x is "a d e b f g c {} {}"
# There are 3 iterations of the loop.
SEE ALSO
for(n), while(n), break(n), continue(n)
KEYWORDS
foreach, iteration, list, looping
Tcl foreach(n)