Using a bash script, I need to find all files in a folder "except" the newest file. Then I need to insert the contents of one text file into all the files found. This text needs to be placed at the beginning of each file and needs a blank line between it and the current contents of the file. Then I... (5 Replies)
Hi all,
my problem is teh following:
I need to move a file from a folder to another and I usually do it by the get command but in this case I have a list of file in the source folder and I have to select only the lust updated one.
Ho to do this?
All the files have the same name followed... (4 Replies)
Is there a shell command that will allow me to list index files in the /home directory for all users on a server that have been updated within the past 24 hours?
(e.g. index.htm .html .php in/home/user1/public_html /home/user2/public_html /home/user3/public_html etc ) (2 Replies)
hi gurus,
i would like to know how can i find logs files which were recently modified or updated? :confused:
using this command?
find . -name "*.log" -mtime ??
so what should i put for mtime?
thanks.
wee (9 Replies)
Hi
i have many sets of files as shown below(here i have shown 2 sets)
basel_aa_20091030.txt
basel_aa_20091130.txt
basel_aa_20091230.txt
basel_bb_20091030.txt
basel_bb_20091130.txt
basel_bb_20091230.txt
from each set of files i need to select the latest updated file(there are... (3 Replies)
In response to a closed thread for degraff63 at
https://www.unix.com/shell-programming-scripting/108882-using-mv-find-exec.html
the following command might do it as some shells spit it without the "exec bash -c " part:
Find . -name "*.model" -exec bash -c "mv {} \`echo {} | sed -e 's//_/g'\`"... (0 Replies)
Hi,
I am trying to work on this script that needs to monitor a Directory.
In case there are no files received in that Directory for the last 5 minutes, it has to send out an alert.
Could someone please suggest any approach for the same.
Note: I did check out various previous psts -... (8 Replies)
Hello,
Iam running with one issue, since particular date looks like one of the script vanished from the system after restarting of the system.
I dont know which scrit it was but definatelt there should be one.
but might be some logs would be there which have not updated from that day.
so... (2 Replies)
Can someone help me with this script.
I have a bunch of files like this:
"2209OS_02_Code" "2209OS_03_Code" "2209OS_04_Code" "2209OS_05_Code" "2209OS_06_Code" "2209OS_07_Code" "2209OS_08_Code" "2209OS_09_Code" "2209OS_10_Code" "2209OS_10_video"
and I want to rename them to be like this:
... (2 Replies)
but it's not working.
Hello all.
I'm running the following command to find files with a specific name and rename them, but the command prompt returns a short 10 seconds after executing and doesn't find or rename anything.
What am I doing wrong here?
find . -type f | for file in... (3 Replies)
Discussion started by: bbbngowc
3 Replies
LEARN ABOUT V7
expr
EXPR(1) General Commands Manual EXPR(1)NAME
expr - evaluate arguments as an expression
SYNOPSIS
expr arg ...
DESCRIPTION
The arguments are taken as an expression. After evaluation, the result is written on the standard output. Each token of the expression is
a separate argument.
The operators and keywords are listed below. The list is in order of increasing precedence, with equal precedence operators grouped.
expr | expr
yields the first expr if it is neither null nor `0', otherwise yields the second expr.
expr & expr
yields the first expr if neither expr is null or `0', otherwise yields `0'.
expr relop expr
where relop is one of < <= = != >= >, yields `1' if the indicated comparison is true, `0' if false. The comparison is numeric if
both expr are integers, otherwise lexicographic.
expr + expr
expr - expr
addition or subtraction of the arguments.
expr * expr
expr / expr
expr % expr
multiplication, division, or remainder of the arguments.
expr : expr
The matching operator compares the string first argument with the regular expression second argument; regular expression syntax is
the same as that of ed(1). The (...) pattern symbols can be used to select a portion of the first argument. Otherwise, the
matching operator yields the number of characters matched (`0' on failure).
( expr )
parentheses for grouping.
Examples:
To add 1 to the Shell variable a:
a=`expr $a + 1`
To find the filename part (least significant part) of the pathname stored in variable a, which may or may not contain `/':
expr $a : '.*/(.*)' '|' $a
Note the quoted Shell metacharacters.
SEE ALSO ed(1), sh(1), test(1)DIAGNOSTICS
Expr returns the following exit codes:
0 if the expression is neither null nor `0',
1 if the expression is null or `0',
2 for invalid expressions.
EXPR(1)