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
if
if(n) Tcl Built-In Commands if(n)
__________________________________________________________________________________________________________________________________________________NAME
if - Execute scripts conditionally
SYNOPSIS
if expr1 ?then? body1 elseif expr2 ?then? body2 elseif ... ?else? ?bodyN?
_________________________________________________________________DESCRIPTION
The if command evaluates expr1 as an expression (in the same way that expr evaluates its argument). The value of the expression must be a
boolean (a numeric value, where 0 is false and anything is true, or a string value such as true or yes for true and false or no for false);
if it is true then body1 is executed by passing it to the Tcl interpreter. Otherwise expr2 is evaluated as an expression and if it is true
then body2 is executed, and so on. If none of the expressions evaluates to true then bodyN is executed. The then and else arguments are
optional "noise words" to make the command easier to read. There may be any number of elseif clauses, including zero. BodyN may also be
omitted as long as else is omitted too. The return value from the command is the result of the body script that was executed, or an empty
string if none of the expressions was non-zero and there was no bodyN.
EXAMPLES
A simple conditional:
if {$vbl == 1} { puts "vbl is one" }
With an else-clause:
if {$vbl == 1} {
puts "vbl is one"
} else {
puts "vbl is not one"
}
With an elseif-clause too:
if {$vbl == 1} {
puts "vbl is one"
} elseif {$vbl == 2} {
puts "vbl is two"
} else {
puts "vbl is not one or two"
}
Remember, expressions can be multi-line, but in that case it can be a good idea to use the optional then keyword for clarity:
if {
$vbl == 1 || $vbl == 2 || $vbl == 3
} then {
puts "vbl is one, two or three"
}
SEE ALSO
expr(n), for(n), foreach(n)
KEYWORDS
boolean, conditional, else, false, if, true
Tcl if(n)