Please give us a few lines from inputfile and provide the desired output as well. It isn't obvious whether you're asking us to change a + to a - and a - to a + or if you want us to insert or remove a -. We also need to see if you're counting from 0 or from 1.
---------- Post updated at 15:13 ---------- Previous update was at 14:30 ----------
Hello,
I have a 1.6 GB file that I would like to modify by matching some ids in col1 with the ids in col 1 of file2.txt and save the results into a 3rd file.
For example:
File 1 has 1411 rows, I ignore how many columns it has (thousands)
File 2 has 311 rows, 1 column
Would like to... (7 Replies)
I have file with multiple columns. Column values for a record may be same.
Now i have to replace a column value(this can be same for the other columns) with new value.
File.txt
A,B,C,D,A,B,C,D,A,B,C,D
A,B,C,D,A,B,C,D,A,B,C,D
A,B,C,D,A,B,C,D,A,B,C,D
A,B,C,D,A,B,C,D,A,B,C,D... (1 Reply)
Hi Friends,
This is the only solution to my task. So, any help is highly appreciated.
I have a file
cat input1.bed
chr1 100 200 abc
chr1 120 300 def
chr1 145 226 ghi
chr2 567 600 unix
Now, I have another file by name
input2.bed (This file is a binary file not readable by the... (7 Replies)
Hi,
I am a newbie to awk. Here is my problem. Looking for an awk 1-liner to solve it:
My Computing Environment:
- Solaris10
- I prefer to use csh or sh shells
1. Lets say my input file is File1.dat (delimter = | ) and looks as follows:
(File1.dat)
... (1 Reply)
Hello,
I want to Replace/Remove ^M and the new line that follows it in a delimited file.
So far I have tried following and nothing seems to work for me .
Tr –d ‘\r\n’ < old.dat > new.dat -removes all the linefeed, not just the ones after a ^M.
Sed ‘/^M$/{N; s/.\n//;}’ < old.dat >... (7 Replies)
I have a file like this.
It is tab delimited.
Unfortunately, the missing data was filled in with a period "." (see the leading lines 1-5 columns)
I want to substitute the periods for misisng data with an integer "-999".
however, I do not want the global replace to change the other periods seen... (7 Replies)
Hi,
I have the requirement similar to the one mentioned in the below thread.
https://www.unix.com/unix-for-dummies-questions-and-answers/128155-search-replace-string-only-particular-column-delimited-file.html
The only difference is that I need to change the field for row 1,2 and the last... (14 Replies)
Hi all,
I am fairly new to UNIX and I was wondering if you could provide me with some help! Lets say i have a file as below :
Line 1
Line 2
Line 3
ABC|12|4|2
Now the number 4 in bold, this number will represent the number of row there is in the file excluding the header and footer... (10 Replies)
I have an input file as below
Emp1|FirstName|MiddleName|LastName|Address|Pincode|PhoneNumber
1234|FirstName1|MiddleName2|LastName3| Add1 || ADD2|123|000000000
Output :
1234|FirstName1|MiddleName2|LastName3| Add1 ,, ADD2|123|000000000
OR
1234,FirstName1,MiddleName2,LastName3, Add1 ||... (2 Replies)
Discussion started by: styris
2 Replies
LEARN ABOUT POSIX
chsh
CHSH(1) User Commands CHSH(1)NAME
chsh - change login shell
SYNOPSIS
chsh [options] [LOGIN]
DESCRIPTION
The chsh command changes the user login shell. This determines the name of the user's initial login command. A normal user may only change
the login shell for her own account; the superuser may change the login shell for any account.
OPTIONS
The options which apply to the chsh command are:
-h, --help
Display help message and exit.
-R, --root CHROOT_DIR
Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory.
-s, --shell SHELL
The name of the user's new login shell. Setting this field to blank causes the system to select the default login shell.
If the -s option is not selected, chsh operates in an interactive fashion, prompting the user with the current login shell. Enter the new
value to change the shell, or leave the line blank to use the current one. The current shell is displayed between a pair of [ ] marks.
NOTE
The only restriction placed on the login shell is that the command name must be listed in /etc/shells, unless the invoker is the superuser,
and then any value may be added. An account with a restricted login shell may not change her login shell. For this reason, placing /bin/rsh
in /etc/shells is discouraged since accidentally changing to a restricted shell would prevent the user from ever changing her login shell
back to its original value.
FILES
/etc/passwd
User account information.
/etc/shells
List of valid login shells.
/etc/login.defs
Shadow password suite configuration.
SEE ALSO chfn(1), login.defs(5), passwd(5).
shadow-utils 4.5 01/25/2018 CHSH(1)