hi actually I have files *.m that contain objective c code like this :
I want to generate a file that constant or whatever name which contain
//No duplication B/C it's variables
and replace this const variables into whatever file contain the match *.m
for example
My problem I have a lot of classes and I should do this work and rather than do it manually it we be coud to create script to do this work
I hope it's clear now
in shell scripting there is extensive usage of
i> regular expression
ii>sed
iii>awk
can anyone tell me the suitable contexts ...i mean which one is suitable for what kind of operation.
like the reg-exp and sed seems to be doing the same job..i.e pattern matching (1 Reply)
$ cat file.txt
asd
<AA>dev
<LL>def
<RR>sha
This works for me:
$ sed -r 's/^ .*<LL>def/\t<LL>my/' file.txt
asd
<AA>dev
<LL>my
<RR>sha
But, this does not work for me:
$ sed -r 's/^\s+<LL>def/\t<LL>my/' file.txt
asd
... (1 Reply)
Hi, I need
to make some extraction . with the following input to get the right output.
input: /etc/exp/home/bin ====> output: exp
and
input: aex1234 ===> output: ex
Thanks for your help, (4 Replies)
Hi,
I am using the following piece of code for extracting some data from in between some tags ...
$text =~ /<TAG1>(.*)<\/TAG1>.*<TAG2>(.*)<\/TAG2>.*<TAG3>(.*)<\/TAG4>.*<TAG5>(.*)<\/TAG5>/;
$tag1=$1;
print "\n$tag1";
But I am getting an error like
Use of uninitialized value in... (1 Reply)
$var1="LEN";
$VAR2="CODLENTT";
now, var2 contains var1(LEN).How do i check this in perl....
whether one string is a part of another..?
if (<logic>)
{
my operation;
}
what'd be the logic.. (4 Replies)
Respected All,
I have a very big xml in that i want to search only below 3 lines.
<target name ="UpgradePrimaryBox" depends ="configureBox1">
<echo> Finished Upgrading Primary Box </echo>
</target>
grep -i "<target.*UpgradePrimaryBox" this gives me the first line.
then i need to match... (7 Replies)
Hi all,
is there anyone good at bash who will help me?
I need to use syntax ${string/pattern/replacement}
The problematic part where I am stuck is:
#!bin/bash
text="A cat is on a mat."
exp="cat"
newexp="SOMECODEcatSOMECODE"
newtext=${${text}/${exp}/${newexp}}
== > ERROR "wrong... (4 Replies)
Hi Unix Gurus,
yesterday I asked a question and got answer, it works fine.
I have one more thing need to help
in the code
awk '{print substr($0,1,3)"xxx"substr($0,7)}' file
If I have 50 charactor's need to be replaced, is there any easy way to use reg exp or I have to input 50 XXXXx......... (12 Replies)
Discussion started by: ken6503
12 Replies
LEARN ABOUT LINUX
rbash
RBASH(1) General Commands Manual RBASH(1)NAME
rbash - restricted bash, see bash(1)RESTRICTED SHELL
If bash is started with the name rbash, or the -r option is supplied at invocation, the shell becomes restricted. A restricted shell is
used to set up an environment more controlled than the standard shell. It behaves identically to bash with the exception that the follow-
ing are disallowed or not performed:
o changing directories with cd
o setting or unsetting the values of SHELL, PATH, ENV, or BASH_ENV
o specifying command names containing /
o specifying a file name containing a / as an argument to the . builtin command
o specifying a filename containing a slash as an argument to the -p option to the hash builtin command
o importing function definitions from the shell environment at startup
o parsing the value of SHELLOPTS from the shell environment at startup
o redirecting output using the >, >|, <>, >&, &>, and >> redirection operators
o using the exec builtin command to replace the shell with another command
o adding or deleting builtin commands with the -f and -d options to the enable builtin command
o using the enable builtin command to enable disabled shell builtins
o specifying the -p option to the command builtin command
o turning off restricted mode with set +r or set +o restricted.
These restrictions are enforced after any startup files are read.
When a command that is found to be a shell script is executed, rbash turns off any restrictions in the shell spawned to execute the script.
SEE ALSO bash(1)GNU Bash-4.0 2004 Apr 20 RBASH(1)