Forum: Shell Scripting  6 Days Ago |
| Replies: 9 Views: 399 it depends on what errors you are looking for. If there are 1000s of errors, are you going to send all 1000 ++ errors to your email?? you have to describe clearly your specs. |
| Forum: Shell Scripting May 23rd, 2009 |
| Replies: 5 Views: 894 use awk
awk '/default = ALL/{
print "default = DES-168"
print "default = RC2-128"
print "default = RC4-128"
print "#"$0
next}1' file |
| Forum: Shell Scripting Apr 15th, 2009 |
| Replies: 3 Views: 1,241 you may search the CPAN library for Audio::Taglib. ( there are others, so pls do a search). |
| Forum: Shell Scripting Apr 15th, 2009 |
| Replies: 3 Views: 1,241 if you have Perl, you can use the MP3::Tag module.
eg
use MP3::Tag;
# set filename of MP3 track
my $filename = "test.mp3";
# create new MP3-Tag object
my $mp3 = MP3::Tag->new($filename);
#... |
| Forum: Shell Scripting Mar 27th, 2009 |
| Replies: 4 Views: 1,058 regular expressions are usually not needed for string manipulations.
# echo "abcdd" | awk 'BEGIN{FS=""}$2==$3{print "ok"}'
# echo "abbdd" | awk 'BEGIN{FS=""}$2==$3{print "ok"}'
ok |
| Forum: Shell Scripting Mar 17th, 2009 |
| Replies: 2 Views: 1,199 awk '{printf "%s %s",$0, ($3 > 40)? "yes" :"no"}' file |
| Forum: Shell Scripting Sep 15th, 2008 |
| Replies: 7 Views: 1,491 you can do everything in awk
ps -C bash -o size= | awk '{sum+=$1}END{ print (sum>65535 ? "exceeded":"not exceeded") }' |
| Forum: Shell Scripting Aug 19th, 2008 |
| Replies: 2 Views: 1,035 better still, no need grep
top | awk '/root/{ sum += $10 }END {print sum}' |
| Forum: Shell Scripting Jul 25th, 2008 |
| Replies: 6 Views: 2,327 Look at the bash guide here (http://tldp.org/LDP/abs/html/testbranch.html). It has examples on checking for upper case. |
| Forum: Shell Scripting Jul 25th, 2008 |
| Replies: 6 Views: 1,138 sed will be slower than tail for huge files. Just a tip |
| Forum: Shell Scripting Jun 24th, 2008 |
| Replies: 6 Views: 1,038 awk 'BEGIN{FS="[: ]"}
/Name/{ name=$3 }
/Active/ && /Yes/{
cmd = "mailx -s \""name " is active\" body root"
system(cmd)
}
' file |
| Forum: Shell Scripting Jun 11th, 2008 |
| Replies: 3 Views: 3,101 do it using awk's srand() and rand().
awk 'BEGIN{
srand()
num=int(rand() * 10) + 1
}
NR==num' file |
| Forum: Shell Scripting Jun 4th, 2008 |
| Replies: 2 Views: 1,331 if TEST2 is the second field and no where else and you want to replace only that second field,
awk 'NR==4{$2="DEV"}1' file |
| Forum: Shell Scripting Jun 3rd, 2008 |
| Replies: 2 Views: 2,641 awk 'BEGIN{FS=""}NR==1{print $1}{l=$NF}END{print l}' file |
| Forum: Shell Scripting Apr 14th, 2008 |
| Replies: 3 Views: 1,310 don't use useless cat with while loop
while read -r line
do
#processing
done < "file"
'
anyway, here's another way to solve your problem |
| Forum: Shell Scripting Apr 13th, 2008 |
| Replies: 1 Views: 842 # grep -f file -v file1
D
E |
| Forum: Shell Scripting Apr 10th, 2008 |
| Replies: 13 Views: 2,792 have you read the line i gave about while loops? pseudocode.
while read -r name number
do
while read -r NAME NUM
do
if NAME is equal name
then
echo... |
| Forum: Shell Scripting Apr 9th, 2008 |
| Replies: 13 Views: 2,792 try this document (http://tldp.org/LDP/abs/html/loops1.html) instead. almost all you need to know about shell |
| Forum: Shell Scripting Apr 9th, 2008 |
| Replies: 13 Views: 2,792 what have you learnt in that online class so far? do you have lecture notes and books for shell scripting? |
| Forum: Shell Scripting Apr 9th, 2008 |
| Replies: 6 Views: 2,395 if you are really developing an intranet application, then ask the administrator to assign you the proper rights to those commands necessary for your work. don't try anything that is not allowed by... |
| Forum: Shell Scripting Apr 5th, 2008 |
| Replies: 6 Views: 1,717 no i am not. there are many who are better:)
this is where i learn AWK/SED (http://www.unix.org.ua/orelly/unix/sedawk/index.htm). Also grymoire (http://www.grymoire.com/Unix/) is worth a look |
| Forum: Shell Scripting Apr 5th, 2008 |
| Replies: 6 Views: 1,717 awk '$NF <=3 {a[NR]=$NF;c[a[NR]]=$0}
END{
n=asort(a,b)
print c[b[n]]
}' file
output:
# ./test.sh
18 126 2833 30 0.010479 2.842 |
| Forum: Shell Scripting Apr 5th, 2008 |
| Replies: 4 Views: 1,153 use the -v option of awk to pass in shell variables so that you don't have to get too confused between shell and awk variables.
eg
awk -v archive="$ARCHIVE" ' {
print archive
# etc code... |
| Forum: Shell Scripting Mar 26th, 2008 |
| Replies: 9 Views: 2,342 no need to use cat
uuencode $file $file | /usr/bin/mailx -s "TEST" |
| Forum: Shell Scripting Mar 7th, 2008 |
| Replies: 8 Views: 2,557 awk 'BEGIN{FS="[]].[[]|[[]|[]]"}
{
gsub(/id|\"/,"",$13)
split($3,a,"/")
gsub("tag","",$16)
print $13,a[1],$7,$16
}' file |
| Forum: Shell Scripting Feb 24th, 2008 |
| Replies: 1 Views: 1,488 simply assign to a variable first
cmd = "useradd -G " var1 " -g " var2 " -m -s " $1 " -u " $2 " -K PASS_MIN_LEN=4 -K PASS_MAX_LEN=7 -p \047*\047" "usrname"
print cmd # to see if your cmd is... |
| Forum: Shell Scripting Jan 22nd, 2008 |
| Replies: 3 Views: 52,661 awk 'NR==1{ print "var="$1}' file |
| Forum: Shell Scripting Jan 15th, 2008 |
| Replies: 3 Views: 11,755 # echo $HTML | sed 's/<html><body>\(.*\)<\/body><\/html>/\1/'
OK |
| Forum: Shell Scripting Jan 14th, 2008 |
| Replies: 3 Views: 1,268 see my sig links for learning bash scripting. If you want to do floating point maths, you can use tools like bc. |
| Forum: Shell Scripting Jan 14th, 2008 |
| Replies: 5 Views: 7,028 for large number of files, basename/dirname may not be a good choice ( but its up to you). Using bash string operation may be more efficient as you don't need to call "external commands"
eg
#... |
| Forum: Shell Scripting Oct 30th, 2007 |
| Replies: 3 Views: 1,291 find /path -type f -name "status10.dat*" -mtime 0 -print0 | xargs -i -0 cp "{}" /cerner/d_p19/ccluserdir |
| Forum: Shell Scripting Oct 28th, 2007 |
| Replies: 4 Views: 3,196 a="2007-05-10"
b="2007-06-10"
awk -v a="$a" -v b="$b" 'BEGIN{
n=split(a,tmpa,"-")
m=split(b,tmpb,"-")
if ( ( tmpa[1] <= tmpb[1] ) && ( tmpa[2] <= tmpb[2] ) ){
print "correct"
}
else { print... |
| Forum: Shell Scripting Oct 28th, 2007 |
| Replies: 7 Views: 2,256 no need for cat
while read ....
do
....
done < inputfile.txt |
| Forum: Shell Scripting Oct 28th, 2007 |
| Replies: 4 Views: 1,941 it should not matter if you put $yr or ${yr}. Show your entire code that defined the variables.. |
| Forum: Shell Scripting Sep 25th, 2007 |
| Replies: 3 Views: 1,202 since this is homework, i will show an example. you follow up with the rest.
awk '/<tag1>/ {
gsub("<tag1>|</tag1>","")
printf "%s|",$0
t1 = t1 sprintf("%s|",$0)
}END... |
| Forum: Shell Scripting Jun 14th, 2007 |
| Replies: 2 Views: 2,587 you can save your IP in a file. check for file existence and if exists, read it and save the IP contained in the file into variable. then check your IP, comparing it with the variable. If not the... |
| Forum: Shell Scripting Jun 11th, 2007 |
| Replies: 2 Views: 2,395 |
| Forum: Shell Scripting Jun 7th, 2007 |
| Replies: 7 Views: 11,877 |
| Forum: Shell Scripting Jun 4th, 2007 |
| Replies: 10 Views: 3,956 put a return statement in the functoin. then call it and use $? to catch the value
# function test() { return 1; }
# var=$(test)
# echo $?
1 |
| Forum: Shell Scripting Jun 4th, 2007 |
| Replies: 10 Views: 3,956 try typing the commands on the shell prompt and see. |
