10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I have a text file which looks like this
a.txt
A,12,Apple,Red
B,33,Banana,Yellow
C,66,Sky,Blue
I need to search for a particular field(s) in particular column(s) and for that matching line need to replace the nth column.
Sample scenario 1:
Search for 66 in second field and Sky in... (5 Replies)
Discussion started by: wahi80
5 Replies
2. Shell Programming and Scripting
$ cat /cygdrive/d/Final2.txt
1,A ,Completed, 07.03_23.01 ,Jun 30 20:00
2,BBB,Pending,,
3,CCCCC,Pending,,
4,DDDDD,Pending,,
5,E,Pending,,
6,FFFF,Pending,,
7,G,Pending,,
In the above file 4th field is date which is in MM.DD_HH.MIN format and I need to convert it to as it is there in 5th... (1 Reply)
Discussion started by: Amit Joshi
1 Replies
3. Shell Programming and Scripting
Hi All,
I am very new to shell scripting and tried to search this in the forum but no luck.
Requirment:
I have an input file which is comma separated. I need to replace the value in 4th column with another value. This has to happen for all the lines in the file.
Sample data:
Input... (2 Replies)
Discussion started by: arunkumarsd
2 Replies
4. Shell Programming and Scripting
Using Awk, how can I achieve the following?
I have set of record numbers, for which, I have to replace the nth field with some values, say spaces.
Eg:
Set of Records : 4,9,10,55,89,etc
I have to change the 8th field of all the above set of records to spaces (10 spaces).
Its a delimited... (1 Reply)
Discussion started by: deepakwins
1 Replies
5. UNIX for Dummies Questions & Answers
Hi all,
I have a TAB separated file like this:
sample.rpt:
54 67 common/bin/my/home {{bla bla bla}} {bla bla} Replace Me
89 75 bad/rainy/day/out {{ some bla} } {some bla} Dontreplace Me
......
......
I wish to do a regexp match on the 3rd... (2 Replies)
Discussion started by: newboy
2 Replies
6. Shell Programming and Scripting
Hi,
I have a date/time field in my file. I have to search in all the records and append a timestamp to it, if the timestamp is missing in that field. Is there a possible awk solution for this?
Field date format
File1
====
1|vamu|payer|2007-12-02 02:01:30|bcbs|... (5 Replies)
Discussion started by: machomaddy
5 Replies
7. Shell Programming and Scripting
Hi,
In my file (which is "," delimited and text qualifier is "), I have to extract a particualr field.
file1:
1,"aa,b",4
expected is the 2nd field:
aa,b
I tried the basic cut -d "," -f 2 file 1, this gave me
aa alone instead aa,b.
A small hint ot help on this will be very... (5 Replies)
Discussion started by: machomaddy
5 Replies
8. Shell Programming and Scripting
Hi All,
I wanted to find 200th field value in delimiter file using awk.?
awk '{print $200}' inputfile
I am getting error message :-
awk: The field 200 must be in the range 0 to 199.
The source line number is 1.
The error context is
{print >>> $200 <<< }
using... (4 Replies)
Discussion started by: Jairaj
4 Replies
9. Shell Programming and Scripting
Hi,
I am looking for any script which can do the following.
have to read a pattern from fileA and copy it to fileB.
fileA:
...
...
Header
...
...
..p1
...
...
fileB:
....
....
Header (3 Replies)
Discussion started by: anilvk
3 Replies
10. Shell Programming and Scripting
HI all
I have a problem, I need to replace a field in a file, but only in the lines that have some pattern, example:
100099C01101C00000000059394200701CREoperadora_TX
100099C01201C00000000000099786137OPERADORA_TX2
in the example above I need to change the first field from 1 to 2 only if... (3 Replies)
Discussion started by: sergiioo
3 Replies
CHSH(1) User Commands CHSH(1)
NAME
chsh - change your login shell
SYNOPSIS
chsh [-s shell] [-l] [-u] [-v] [username]
DESCRIPTION
chsh is used to change your login shell. If a shell is not given on the command line, chsh prompts for one.
chsh is used to change local entries only. Use ypchsh, lchsh or any other implementation for non-local entries.
OPTIONS
-s, --shell shell
Specify your login shell.
-l, --list-shells
Print the list of shells listed in /etc/shells and exit.
-u, --help
Print a usage message and exit.
-v, --version
Print version information and exit.
VALID SHELLS
chsh will accept the full pathname of any executable file on the system. However, it will issue a warning if the shell is not listed in
the /etc/shells file. On the other hand, it can also be configured such that it will only accept shells listed in this file, unless you
are root.
EXIT STATUS
Returns 0 if operation was successful, 1 if operation failed or command syntax was not valid.
SEE ALSO
login(1), passwd(5), shells(5)
AUTHOR
Salvatore Valente <svalente@mit.edu>
AVAILABILITY
The chsh command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux July 2009 CHSH(1)