10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I need to replace, as the title says, the first letter of each line (when it's not a number) by the same letter, but capital.
For instance :
hello
Who
123pass
Would become :
Hello
Who
123pass
Is there a way with sed to do that ? Or other unix command ?
Thank you :) (7 Replies)
Discussion started by: ganon551
7 Replies
2. Shell Programming and Scripting
Good afternoon all,
I want to ask how to change some letter in my file with other letter in spesific line
eg.
data.txt
1
1
1
0
0
0
0
for example i want to change the 4th line with character 1.
How could I do it by SED or AWK.
I have tried to run this code but actually did not... (3 Replies)
Discussion started by: weslyarfan
3 Replies
3. Shell Programming and Scripting
Hi I have a file passwd_exmpl that contains:
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync... (5 Replies)
Discussion started by: eladage
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4. Shell Programming and Scripting
Hi,
I have written the following python snippet to store the capital letter starting words into a dictionary as key and no of its appearances as a value in this dictionary against the key.
#!/usr/bin/env python
import sys
import re
hash = {} # initialize an empty dictinonary
for line in... (1 Reply)
Discussion started by: royalibrahim
1 Replies
5. Shell Programming and Scripting
I need to use bash to convert sentences where all words start with a small letter into one where all words start with a capital letter.
So that a string like:
are utilities ready for hurricane sandy
becomes:
Are Utilities Ready For Hurricane Sandy (10 Replies)
Discussion started by: locoroco
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6. Shell Programming and Scripting
Hi, I need help to convert the filenames of my 9-year daily files (1999-2007) from a julian day to yyyy-mm-dd format. my original files are patterned likes the ones below.
1999001.txt
1999002.txt
1999003.txt
1999004.txt ...
1999365.txt
desired output:
19990101.txt
19990102.txt... (3 Replies)
Discussion started by: ida1215
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7. Shell Programming and Scripting
how can i check if
read -n 1 LETTER;
LETTER is a capital letter and after translate in minuscule.
i have thought with:
tr
or no? (7 Replies)
Discussion started by: tafazzi87
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8. Shell Programming and Scripting
Hi All,
I need to find the previous month last day minus one day, using shell script. Can you guys help me to do this.
My Requirment is as below:
Input for me will be 2000909(YYYYMM)
I need the previous months last day minus 1 day timestamp. That is i need 2000908 months last day minus ... (3 Replies)
Discussion started by: girish.raos
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9. Shell Programming and Scripting
Hi,
I want to be able to list all the names in a file which begin with a capital letter, but I don't want it to list words that begin a new sentence. Is there any way round this?
Thanks for your help. (1 Reply)
Discussion started by: kev269
1 Replies
10. UNIX for Dummies Questions & Answers
:confused:
Hye everybody i would like to know if exist a internet site where i can founs some interesting shell script very usefull
I need to transform hundreds names of files escribed in CAPITAL letter in minuscule letter
do oyu know a mean o do that that thanks to a script or a shell... (1 Reply)
Discussion started by: Dark Angel
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AT(1) Linux Programmer's Manual AT(1)
NAME
at, batch, atq, atrm - queue, examine or delete jobs for later execution
SYNOPSIS
at [-V] [-q queue] [-f file] [-mldbv] TIME
at -c job [job...]
atq [-V] [-q queue]
atrm [-V] job [job...]
batch [-V] [-q queue] [-f file] [-mv] [TIME]
DESCRIPTION
at and batch read commands from standard input or a specified file which are to be executed at a later time, using the shell set by the
user's environment variable SHELL, the user's login shell, or ultimately /bin/sh.
at executes commands at a specified time.
atq lists the user's pending jobs, unless the user is the superuser; in that case, everybody's jobs are listed. The format of the out-
put lines (one for each job) is: Job number, date, hour, job class.
atrm deletes jobs, identified by their job number.
batch executes commands when system load levels permit; in other words, when the load average drops below 0.8, or the value specified in
the invocation of atrun.
At allows fairly complex time specifications, extending the POSIX.2 standard. It accepts times of the form HH:MM to run a job at a spe-
cific time of day. (If that time is already past, the next day is assumed.) You may also specify midnight, noon, or teatime (4pm) and you
can have a time-of-day suffixed with AM or PM for running in the morning or the evening. You can also say what day the job will be run, by
giving a date in the form month-name day with an optional year, or giving a date of the form MMDDYY or MM/DD/YY or DD.MM.YY. The specifi-
cation of a date must follow the specification of the time of day. You can also give times like now + count time-units, where the time-
units can be minutes, hours, days, or weeks and you can tell at to run the job today by suffixing the time with today and to run the job
tomorrow by suffixing the time with tomorrow.
For example, to run a job at 4pm three days from now, you would do at 4pm + 3 days, to run a job at 10:00am on July 31, you would do at
10am Jul 31 and to run a job at 1am tomorrow, you would do at 1am tomorrow.
/usr/share/doc/at-3.1.8/timespec contains the exact definition of the time specification.
For both at and batch, commands are read from standard input or the file specified with the -f option and executed. The working directory,
the environment (except for the variables TERM, DISPLAY and _) and the umask are retained from the time of invocation. An at - or batch -
command invoked from a su(1) shell will retain the current userid. The user will be mailed standard error and standard output from his
commands, if any. Mail will be sent using the command /usr/sbin/sendmail. If at is executed from a su(1) shell, the owner of the login
shell will receive the mail.
The superuser may use these commands in any case. For other users, permission to use at is determined by the files /etc/at.allow and
/etc/at.deny.
If the file /etc/at.allow exists, only usernames mentioned in it are allowed to use at.
If /etc/at.allow does not exist, /etc/at.deny is checked, every username not mentioned in it is then allowed to use at.
If neither exists, only the superuser is allowed use of at.
An empty /etc/at.deny means that every user is allowed use these commands, this is the default configuration.
OPTIONS
-V prints the version number to standard error.
-q queue
uses the specified queue. A queue designation consists of a single letter; valid queue designations range from a to z. and A to
Z. The a queue is the default for at and the b queue for batch. Queues with higher letters run with increased niceness. The spe-
cial queue "=" is reserved for jobs which are currently running.
If a job is submitted to a queue designated with an uppercase letter, it is treated as if it had been submitted to batch at that time. If
atq is given a specific queue, it will only show jobs pending in that queue.
-m Send mail to the user when the job has completed even if there was no output.
-f file Reads the job from file rather than standard input.
-l Is an alias for atq.
-d Is an alias for atrm.
-v Shows the time the job will be executed.
Times displayed will be in the format "1997-02-20 14:50" unless the environment variable POSIXLY_CORRECT is set; then, it will be "Thu Feb
20 14:50:00 1996".
-c cats the jobs listed on the command line to standard output.
FILES
/var/spool/at
/var/spool/at/spool
/proc/loadavg
/var/run/utmp
/etc/at.allow
/etc/at.deny
SEE ALSO
cron(1), nice(1), sh(1), umask(2), atd(8).
BUGS
The correct operation of batch for Linux depends on the presence of a proc- type directory mounted on /proc.
If the file /var/run/utmp is not available or corrupted, or if the user is not logged on at the time at is invoked, the mail is sent to the
userid found in the environment variable LOGNAME. If that is undefined or empty, the current userid is assumed.
At and batch as presently implemented are not suitable when users are competing for resources. If this is the case for your site, you
might want to consider another batch system, such as nqs.
AUTHOR
At was mostly written by Thomas Koenig, ig25@rz.uni-karlsruhe.de.
local Nov 1996 AT(1)