Hi guys, I hope you can help me with my problem.
I have a text file that contains lines like this:
78 ANGELO -809.05
79 ANGELO2 -5,000.06
I need to find all occurences of amounts that are negative and replace them with x's
78 ANGELO xxxxxxx
79... (4 Replies)
Hi
I have a text file which contains the following.
AAA,BBB,CCC,DDD
AAA,BBB,CCC,DDD
AAA,BBB,CCC,DDD
How can I replace all CCC with 888, with other contents inside the file remain unchange? Please advice
Desired output:
AAA,BBB,888,DDD
AAA,BBB,888,DDD
AAA,BBB,888,DDD (1 Reply)
Hi I am new to shell scripting but i manage to do some simple things.
I am trying to replace a string in one file. I am using sed to replace but it is not permanently writing to the file, rather it is temporary. I want to know whether is there any another method to replace a string in a file... (7 Replies)
I have one string
string1=user/password:IP_ADDR:Directory
I need to replace string1 value like store into string2
string2=user password:IP_ADDR:Directory
i.e replace "/" character by '<space>' character
But i wouldn't use any file in the meantime.
Please help me......................... (6 Replies)
There's a replacement in bash for getchar or get functions of C and C++?Those functions read the next char avaliable in the input stream.
I've tried something like:
OLD_STTY=`stty -g`
stty cbreak -echo
look=`dd if=/dev/tty bs=1 count=1 2>/dev/null`
stty $OLD_STTY
But it is not working... (3 Replies)
Hi All,
I have below file which has data in below format.
#$ | AB_100
| AB_300
()| AB_4
@*(% | AB-789
i want o/p as below format.
| AB_100
| AB_300
| AB_4
| AB-789
So here there is no standard format.
How we can achieve the same in unix ?
Regards, (3 Replies)
My input contains a single word lines.
From each line
data.txt
prjtestBlaBlatestBlaBla
prjthisBlaBlathisBlaBla
prjthatBlaBladpthatBlaBla
prjgoodBlaBladpgoodBlaBla
prjgood1BlaBla123dpgood1BlaBla123
Desired output -->
data_out.txt
prjtestBlaBla
prjthisBlaBla... (8 Replies)
Dear Friends,
I want to replace following line with given line.
It should grep/search following string in a file (input.txt)
M/M SRNO: 000M/6200-0362498 COSMETIC PRO MALE FEMALE
Once found it should replace it to following string.
T_DLHNNO: 000M/6200-0362498 ... (7 Replies)
Hi,
I need to use the regex in the replacement string in SED command.
something like
sed -e ' s/\(^\{5\}\).\{150\}\(.*\)$/\10\{30\}1\{30\}A\{60\}B\{30\}\2/' abc
which means for all the lines in file abc that starts with 5 characters, I need to replace character 6-151... (6 Replies)
Hello, I want to rename multiple files and catch some points about backreference within sed and regex.
Here is a part of my file list. Input:
S92A.fa
S92B.fa
...
S96Z.fa
S921.fa
S922.fa
...
S997.fa Note: The file names are not necessarily continuous from A~Z or 921 ~ 997, as some of the... (3 Replies)
Discussion started by: yifangt
3 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)