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)
Okay, I have a script right now that is made to search through a file and replace certain strings with a new one. The format to execute is "/subst <replacethis> <withthis> <filename>" and it only updates the file IF changes are made (in order to preserve the time it was made/last modified). I have... (6 Replies)
I have an xml file with following tags
<NewTag>value123</xyz>
<NewTag>value321</abcd>
I have to replace the values in between the tags with some value ( VAL1/VAL2)
but the thing the ending tag can be any thing, for this i need a awk command
currently i am using this but it... (5 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 need to search and replace a particular string in a file. Only the exact match of the string should be replaced.
eg: File contents : abc abcd abcdef
--> Replace only 'abc' with 'xyz', but it should not replace abcd with xyzd.
So the o/p should be: xyz abcd abcdef.
How can this be done? I... (5 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)
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 have a text file where all records come in one line (single line file), each record starts with 'BUCH' and ends with '@&' and if data is not there we get space instead. between '@&' and next record there might be some spaces, now I want to remove those spaces between '@&' and 'BUCH'.
... (4 Replies)
Hi,
Using the following command, I can only get rid of the last extension from my input file name:
parallel command '>' {.}.output ::: my.input.file
The output file is "my.input.output"
How can I get rid of the last two extensions of my input file name, so that end up with "my.output"?... (4 Replies)
Discussion started by: forU
4 Replies
LEARN ABOUT OSX
passwd
PASSWD(1) BSD General Commands Manual PASSWD(1)NAME
passwd -- modify a user's password
SYNOPSIS
passwd [-i infosystem [-l location]] [-u authname] [user]
DESCRIPTION
The passwd utility changes the user's password. If the user is not the super-user, passwd first prompts for the current password and will
not continue unless the correct password is entered.
When entering the new password, the characters entered do not echo, in order to avoid the password being seen by a passer-by. The passwd
utility prompts for the new password twice in order to detect typing errors.
The new password should be at least six characters long and not purely alphabetic. Its total length should be less than _PASSWORD_LEN (cur-
rently 128 characters), although some directory systems allow longer passwords. Numbers, upper case letters, and meta characters are encour-
aged.
Once the password has been verified, passwd communicates the new password to the directory system.
-i infosystem
This option specifies where the password update should be applied. Under Mac OS X 10.5 and later, supported directory systems are:
PAM (default) Pluggable Authentication Modules.
opendirectory
A system conforming to Open Directory APIs and supporting updates (including LDAP, etc). If no -l option is specified, the
search node is used.
file The local flat-files (included for legacy configurations).
nis A remote NIS server containing the user's password.
-l location
This option causes the password to be updated in the given location of the chosen directory system.
for file,
location may be a file name (/etc/master.passwd is the default)
for nis,
location may be a NIS domainname
for opendirectory,
location may be a directory node name
for PAM,
location is not used
-u authname
This option specifies the user name to use when authenticating to the directory node.
user This optional argument specifies the user account whose password will be changed. This account's current password may be required,
even when run as the super-user, depending on the directory system.
FILES
/etc/master.passwd The user database
/etc/passwd A Version 7 format password file
/etc/passwd.XXXXXX Temporary copy of the password file
SEE ALSO chpass(1), login(1), dscl(1), passwd(5), pwd_mkdb(8), vipw(8)
Robert Morris and Ken Thompson, UNIX password security.
HISTORY
A passwd command appeared in Version 6 AT&T UNIX.
Mac OS X August 18, 2008 Mac OS X