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Shell Programming and Scripting
Replacing a string
Post 302893461 by Pradeep_1990 on Wednesday 19th of March 2014 10:39:37 AM
03-19-2014
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1. Shell Programming and Scripting
hii,
i need a unix command which replaces all occurrences of a substring within a string with another substring.
My solution:
string="plalstalplal"
sub1="al"
sub2="mlkl"
echo sed 's/$s2/$s3/g' < s1 > p
i want to know how to read the variables s2 and s3..
thaks a lot
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Hi All,
I have below requirement:
I need to read each line in file.txt and replace string starting from position 9 to 24 {111111111111111,222222222222222,333333333333333} by common string "444444444444444" and save file.
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LEARN ABOUT ULTRIX
uurespool
uuaids(8c) uuaids(8c) Name uucompact, uumkspool, uurespool, uupoll - uucp utilities Syntax uucompact -ssystem uumkspool system ... uurespool [ -t# ] uupoll system ... Description All of the commands are located in The command compacts uucp system spool directories and associated subdirectories. If system is ALL, then all existing uucp system spool directories are compacted. Otherwise, only the specified system spool directory is compacted. If no system is specified, is compacted. If is stopped before it is finished, it can be restarted without reprocessing directories. The command continues processing where it left off during it's previous instantiation. The command makes a per system spool directory and associated subdirectories for each of the specified systems. For example, if system is mk3 and if the local system name is penny, the following directories are created: /usr/spool/uucp/sys/mk3 /usr/spool/uucp/sys/mk3/C. /usr/spool/uucp/sys/mk3/X. /usr/spool/uucp/sys/mk3/D. /usr/spool/uucp/sys/mk3/D.penny /usr/spool/uucp/sys/mk3/D.penny The command moves files from old spool directories to new spool directories. Because the structure of the spool directories has changed from older versions of it is necessary to respool old spooled files to new spool directories in at least two instances: o When installing the current version of o When creating a new system spool directory for each system. In the latter case, it is necessary to move files from to the new spool directories. To ease this task, moves files that have been spooled in one of 4 formats and respools them under the new spooling structure. The format is specified by the -t# option, where the number sign (#) can be any one of the following: o Original spool - All files are in o Split spool - Contains the subdirectories o Modified split spool - Contains all subdirectories listed in split spool, and o Used when a new system directory has been created and spool files must be moved from the DEFAULT directory to the new system directory. The command forces a connect attempt to the named systems even if recent attempts have failed, but not if the file prohibits the call. For example, the file will prohibit the call if it is the wrong time of day. Thus, the should be monitored for messages about the connection. Files Spool directory Logfile See Also mail(1), uucp(1c), uux(1c) uuaids(8c)