Hi everyone,
I am attempting to do something that should be very simple. How do I replace a specific line of a file with different text, and then save that file to its original name? I believe I want to use the sed command with the c option, but I after trying many times, I can't get the right... (10 Replies)
Hi,
I'm struggling to write a script to do the following,
-will go through each line in the file
-in a specific character positions, changes
the value to a new value
-These character positions are fixed througout the file
-----------------------
e.g.: file1.sh will have the following 3... (4 Replies)
Suppose I have a file. The content of the file is:
Fwf33
#enable_a STH.
fwqfw
egvega
What I want to do is: if "STH" = "YES", do not change it, otherwise, change it to "YES". e.g.
if
“enable_a ERR”
change it to be
“enable_a YES”
if
“enable_a YES”
do not change the file.
... (2 Replies)
Hi.
I have a list with files, and I would like to add a variable to the end of each line of each file in this list. The files are in a folder together with a large number of other files which I don't want to change.
My code is:
for file in 'cat ../list'
do
sed 's/$/\/R:_0/' $file >>... (4 Replies)
Hi,
I have a input files as below.
Sample of one input file
type mtg_key =
record
decimal("\344") id;
string("\344") ct_cd;
string("\344") st_cd;
end;
type psl_key =
record
decimal("\344") id;
utf8 string("\344") st_cd;
end;
type amk_fields =
record
... (6 Replies)
Hello all,
I have a line of code in a file that I need to change in the /etc/sysconfig/kdump file
presently the line reads:
KDUMP_COMMANDLINE_APPEND="irqpoll nr_cpus=1 reset_devices cgroup_disable=memory mce=off"
what I need to do is put a comment out the 1st line and repeat it, and... (5 Replies)
Hi Guys,
I am having a set of date format files files where I am performing the below set of operations in the files . I Need to replace the last line value with specific date which is a pipe delimited file.
for egf1_20140101.txt
aa|aus|20140101|yy
bb|nz|20140101|yy
.
.... (19 Replies)
I am trying to change a file that looks like this:
file, announcement,date, server, server01, server02, server06, file04, rec01, rec04, rec03... etc
into a vertical file like this:
file
announcement
date
server
server01
server02
server06
The file does not have to be sorted... (5 Replies)
I have a log file, which i have divided into 14 files using csplit, the file looks like below
test-000000
test-000001 #and so on until 14
now I want all the 14 files generated to be renamed as the some part of test in first line of the file how can i eliminate the unwanted text?
sample... (5 Replies)
Hi Gurus,
I have below file which has different sections, need to move the sections to beginning of the each record.
original file
aaa
bbb
ccc
ddd
eee
fff
output file.
aaa
bbb
ccc
ddd
eee
fff (6 Replies)
Discussion started by: green_k
6 Replies
LEARN ABOUT SUSE
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)