i need help in bash script
I have a lic.txt at domain.com which contains the string "1234567".
i want to use string "1234567". in bash script
if this word found in http://domain.com/license.txt run bash script function if not found output error license invalid how can i add this in my bash script
my bash script code is
if [ $1 ]; then
SIZE=$(($1 * 1024))
else
SIZE=$((100 * 1024))
fi
Sname=`echo $0 | sed 's/.\///g'`;
for x in $TXT_PATH/*_t.txt
do
if [ ! -e $LOCK_FILE ]; then
if [ "$x" == "$Sname" ]; then
echo -ne;
elif [ -d "$x" ] || [ -e "$x" ]; then
/bin/touch $LOCK_FILE
My command 1
My command 2
My command 3
My command 4
My command 5
My command 6
My command 7
rm -rf $LOCK_FILE
fi
else
echo "Lock file remove for run"
fi
done
If I understand the question correctly you need something like that:
wget http://domain.com/license.txt
code = $(grep 1234567 license.txt)
if [ -z $code ]; then echo "Invalid license"; else function_call_here; fi
Thanks Fredrik
Related
I want to check if the argument passed while executing the script matches the prefix of a filename in my directory. I m facing binary operator expected error with my code. Does any body have any alternative approach ?
./test.sh abc
fucn_1(){
if [ -e $file_name* ] ; then
func_2
else
echo "file not found"
exit
fi
}
if [ $1 == abc ];
then
file_name=`echo $1`
fucn_1
elif [ $1 == xyz ];
then
file_name=`echo $1`
fucn_1
while running I m passing abc as the argument such that then script can then check if the filenames starting with 'abc' is present or not in the directory.
the dir has files :-
abc_1234.txt
abc_2345.txt
The glob $file_name* expands to a list of files. You ran [ -e abc_1234.txt abc_2345.txt ] which gives an error, since [ -e expects only one file, not two.
Try something like ...
#! /usr/bin/env bash
shopt -s nullglob
has_args() { (( "$#" > 0 )); }
if has_args "$1"*; then
echo "$1 is a prefix of some file or dir"
else
echo "$1 is not a prefix of any file or dir"
fi
I have many javascript files in my solaris server which have some debug, print and trace statements which I want to comment. There are hundreds of file like this.
I have found a script to do this but the problem is the script is removing the urhk_b2k_printRepos statement instead of commenting it. The script is as below:
if [ $# -ne 2 ]
then
echo "usage: prdel <script file name> <directory in which scripts are present>"
exit 1
fi
file=$1
dir=$2
if [ ! -s ${file} ]
then
echo "script file ${file} either does not exist or is empty (zero bytes)"
echo "Exiting..."
exit 1
fi
if [ ! -d ${dir} ]
then
echo "Invalid directory ${dir} entered"
echo "Exiting..."
exit 1
fi
cordir="./corrected"
prlogdir="./prlog"
if [ -d ${cordir} ]
then
echo "The corrected directory exist in the path, Please remove and run the tool again"
echo "Exiting..."
exit 1
else
mkdir ${cordir}
fi
if [ -d ${prlogdir} ]
then
echo "The prlog directory exist in the path, Please remove and run the tool again"
echo "Exiting..."
exit 1
else
mkdir ${prlogdir}
fi
errFile="$prlogdir/scr_err.rpt"
sucFile="$prlogdir/scr_suc.rpt"
Lines=`wc -l $file`
cntr=1
while [ $cntr -le $Lines ]
do
src=`head -$cntr $file|tail -1`
echo "$cntr. Processing $src...."
srcPath="${dir}/${src}"
if [ ! -s ${srcPath} ]
then
echo "Script file ${src} does not exist in the path given" >> ${errFile}
else
cp $srcPath $cordir/$src.tmp
srctemp="$cordir/$src.tmp"
srccor="$cordir/$src.corrected"
printcnt=`grep -ci "^[ ]*print" $srctemp`
if [ $printcnt -ne 0 ]
then
cat $srctemp|sed 's/^[ ]*[ ]*print[ ]*(/#print(/'|sed 's/^[ ]*[ ]*PRINT[ ]*(/#PRINT(/' > $srccor
mv $srccor $srctemp
fi
prreposcnt=`grep -ci "printrepos" $srctemp`
if [ $prreposcnt -ne 0 ]
then
cat $srctemp|sed 's/^.*urhk_b2k_printRepos.*/#Printrepos statement removed/'|sed 's/^.*urhk_B2k_PrintRepos.*/#Printrepos statement removed/'|sed 's/^.*urhk_B2k_printRepos.*/#Printrepos statement removed/'|sed 's/^.*urhk_b2k_PrintRepos.*/#Printrepos statement removed/' > $srccor
else
cp $srctemp $srccor
fi
echo "Script file $src correction is done" >> ${sucFile}
rm $srctemp
diff $srcPath $srccor >> $prlogdir/$src.diff.rpt
fi
cntr=`expr $cntr + 1`
done
echo "done"
I am completely new to shell scripting. Can anyone help me to modify this script to comment "urhk_b2k_printRepos" lines and also comment "TRACE ON" lines.
Right. Basically what I want to achieve is i am trying to write a bash script which will take file as input argument and then load that file in the script and show all the lines in that file with the numbers bulletin. how can i do that.
i have tried nl -ba teat file but its not working
1 hii
2 whats up
3 how are you today
4 where have you been
5 whats going on
this is the sript i have written
#!/bin/bash
if [ $# == 0 ]; then
echo "ivalid argument"
elif [ $1 == $file ]; then
while read line
do
echo `nl $Line`
done
else
echo "wtf"
fi
See below modified script that does the job without using "nl":
#!/bin/bash
if [ -z "$1" ]; then
echo "ivalid argument"
exit 1;
fi;
cnt=1;
while read line; do
echo "$cnt $line";
((cnt++));
done<"$1";
I don't know, what
[ $1 == $file ]
is supposed to mean in your script, since you don't set a variable file anywhere, but here is one solution:
#!/bin/bash
nl -ba {$1?Tell me the name of the file or I will kick you}
I am trying to run a shell script called graphhopper.sh in Ubuntu 12.04 which was given by a website. When I run it, terminal produces
: not found.sh: 2: graphhopper.sh:
graphhopper.sh: 39: graphhopper.sh: Syntax error: "else" unexpected (expecting "then")
The lines which start from 37 in the shell file are,
if [ ${OSM_FILE: -4} == ".pbf" ]; then
wget -O $OSM_FILE $LINK
else
# make sure aborting download does not result in loading corrupt osm file
TMP_OSM=temp.osm
wget -O - $LINK | bzip2 -d > $TMP_OSM
mv $TMP_OSM $OSM_FILE
fi
if [ ! -f "$OSM_FILE" ]; then
echo "ERROR couldn't download or extract OSM file $OSM_FILE ... exiting"
exit
fi
else
echo "## using existing osm file $OSM_FILE"
fi
This is the whole shell script.
#!/bin/bash
GH_HOME=$(dirname $0)
JAVA=$JAVA_HOME/bin/java
if [ "x$JAVA_HOME" = "x" ]; then
JAVA=java
fi
vers=`$JAVA -version 2>&1 | grep "java version" | awk '{print $3}' | tr -d \"`
bit64=`$JAVA -version 2>&1 | grep "64-Bit"`
if [ "x$bit64" != "x" ]; then
vers="$vers (64bit)"
fi
echo "## using java $vers from $JAVA_HOME"
CONFIG=config.properties
if [ ! -f "config.properties" ]; then
cp config-example.properties $CONFIG
fi
ACTION=$1
FILE=$2
USAGE="./graphhopper.sh import|ui|test <your-osm-file>"
if [ "x$ACTION" = "x" ]; then
echo -e "## action $ACTION not found. try \n$USAGE"
fi
function ensureOsmXml {
if [ ! -s "$OSM_FILE" ]; then
echo "File not found '$OSM_FILE'. Press ENTER to get it from: $LINK"
echo "Press CTRL+C if you do not have enough disc space or you don't want to download several MB."
read -e
echo "## now downloading OSM file from $LINK and extracting to $OSM_FILE"
if [ ${OSM_FILE: -4} == ".pbf" ]; then
wget -O $OSM_FILE $LINK
else
# make sure aborting download does not result in loading corrupt osm file
TMP_OSM=temp.osm
wget -O - $LINK | bzip2 -d > $TMP_OSM
mv $TMP_OSM $OSM_FILE
fi
if [ ! -f "$OSM_FILE" ]; then
echo "ERROR couldn't download or extract OSM file $OSM_FILE ... exiting"
exit
# fi
else
echo "## using existing osm file $OSM_FILE"
fi
}
function ensureMaven {
# maven home existent?
if [ "x$MAVEN_HOME" = "x" ]; then
# not existent but probably is maven in the path?
MAVEN_HOME=`mvn -v | grep "Maven home" | cut -d' ' -f3`
if [ "x$MAVEN_HOME" = "x" ]; then
# try to detect previous downloaded version
MAVEN_HOME="$GH_HOME/maven"
if [ ! -f "$MAVEN_HOME/bin/mvn" ]; then
echo "No Maven found in the PATH. Now downloading+installing it to $MAVEN_HOME"
cd "$GH_HOME"
MVN_PACKAGE=apache-maven-3.0.5
wget -O maven.zip http://www.eu.apache.org/dist/maven/maven-3/3.0.5/binaries/$MVN_PACKAGE-bin.zip
unzip maven.zip
mv $MVN_PACKAGE maven
rm maven.zip
fi
fi
fi
}
function packageCoreJar {
if [ ! -f "$JAR" ]; then
echo "## now building graphhopper jar: $JAR"
echo "## using maven at $MAVEN_HOME"
#mvn clean
"$MAVEN_HOME/bin/mvn" -f "$GH_HOME/core/pom.xml" -DskipTests=true install assembly:single > /tmp/graphhopper-compile.log
returncode=$?
if [[ $returncode != 0 ]] ; then
echo "## compilation failed"
cat /tmp/graphhopper-compile.log
exit $returncode
fi
else
echo "## existing jar found $JAR"
fi
}
function prepareEclipse {
ensureMaven
packageCoreJar
cp core/target/graphhopper-*-android.jar android/libs/
}
## now handle actions which do not take an OSM file
if [ "x$ACTION" = "xclean" ]; then
rm -rf */target
exit
elif [ "x$ACTION" = "xeclipse" ]; then
prepareEclipse
exit
elif [ "x$ACTION" = "xandroid" ]; then
prepareEclipse
"$MAVEN_HOME/bin/mvn" -f "$GH_HOME/android/pom.xml" install android:deploy android:run
exit
fi
if [ "x$FILE" = "x" ]; then
echo -e "no file specified? try \n$USAGE"
exit
fi
# NAME = file without extension if any
NAME="${FILE%.*}"
if [ ${FILE: -4} == ".osm" ]; then
OSM_FILE=$FILE
elif [ ${FILE: -4} == ".pbf" ]; then
OSM_FILE=$FILE
elif [ ${FILE: -7} == ".osm.gz" ]; then
OSM_FILE=$FILE
else
# no end default to osm
OSM_FILE=$NAME.osm
fi
GRAPH=$NAME-gh
VERSION=`grep "<name>" -A 1 pom.xml | grep version | cut -d'>' -f2 | cut -d'<' -f1`
JAR=core/target/graphhopper-$VERSION-jar-with-dependencies.jar
# file without path (.osm.gz or osm.bz2 is also possible)
TMP=$(basename "$FILE")
TMP="${TMP%.*}"
TMP="${TMP%.*}"
if [ "x$TMP" = "xunterfranken" ]; then
LINK="http://download.geofabrik.de/openstreetmap/europe/germany/bayern/unterfranken.osm.bz2"
JAVA_OPTS="-XX:PermSize=60m -XX:MaxPermSize=60m -Xmx200m -Xms200m"
elif [ "x$TMP" = "xgermany" ]; then
LINK=http://download.geofabrik.de/openstreetmap/europe/germany.osm.bz2
# Info: for import we need a more memory than for just loading it
JAVA_OPTS="-XX:PermSize=60m -XX:MaxPermSize=60m -Xmx1600m -Xms1600m"
else
LINK=`echo $NAME | tr '_' '/'`
if [ ${FILE: -4} == ".osm" ]; then
LINK="http://download.geofabrik.de/$LINK-latest.osm.bz2"
else
LINK="http://download.geofabrik.de/$LINK-latest.osm.pbf"
fi
if [ "x$JAVA_OPTS" = "x" ]; then
JAVA_OPTS="-XX:PermSize=60m -XX:MaxPermSize=60m -Xmx1000m -Xms1000m"
fi
fi
ensureOsmXml
ensureMaven
packageCoreJar
echo "## now $ACTION. JAVA_OPTS=$JAVA_OPTS"
if [ "x$ACTION" = "xui" ] || [ "x$ACTION" = "xweb" ]; then
export MAVEN_OPTS="$MAVEN_OPTS $JAVA_OPTS"
"$MAVEN_HOME/bin/mvn" -f "$GH_HOME/web/pom.xml" -Dgraphhopper.config=$CONFIG \
-Dgraphhopper.osmreader.osm=$OSM_FILE -Djetty.reload=manual jetty:run
elif [ "x$ACTION" = "ximport" ]; then
"$JAVA" $JAVA_OPTS -cp "$JAR" com.graphhopper.GraphHopper printVersion=true config=$CONFIG \
graph.location="$GRAPH" \
osmreader.osm="$OSM_FILE"
elif [ "x$ACTION" = "xtest" ]; then
"$JAVA" $JAVA_OPTS -cp "$JAR" com.graphhopper.GraphHopper printVersion=true config=$CONFIG \
graph.location="$GRAPH" osmreader.osm="$OSM_FILE" prepare.chShortcuts=false \
graph.testIT=true
elif [ "x$ACTION" = "xmeasurement" ]; then
ARGS="graph.location=$GRAPH osmreader.osm=$OSM_FILE prepare.chShortcuts=fastest osmreader.acceptWay=CAR"
echo -e "\ncreate graph via $ARGS, $JAR"
START=$(date +%s)
"$JAVA" $JAVA_OPTS -cp "$JAR" com.graphhopper.GraphHopper $ARGS prepare.doPrepare=false
END=$(date +%s)
IMPORT_TIME=$(($END - $START))000
function startMeasurement {
COUNT=5000
ARGS="$ARGS prepare.doPrepare=true measurement.count=$COUNT measurement.location=$M_FILE_NAME graph.importTime=$IMPORT_TIME"
echo -e "\nperform measurement via $ARGS, $JAR"
"$JAVA" $JAVA_OPTS -cp "$JAR" com.graphhopper.util.Measurement $ARGS
}
# use all <last_commits> versions starting from HEAD
last_commits=$3
if [ "x$last_commits" = "x" ]; then
# use current version
"$MAVEN_HOME/bin/mvn" -f "$GH_HOME/core/pom.xml" -DskipTests clean install assembly:single
startMeasurement
exit
fi
commits=$(git rev-list HEAD -n $last_commits)
for commit in $commits; do
git checkout $commit -q
M_FILE_NAME=`git log -n 1 --pretty=oneline | grep -o "\ .*" | tr " ,;" "_"`
M_FILE_NAME="measurement$M_FILE_NAME.properties"
echo -e "\nusing commit $commit and $M_FILE_NAME"
"$MAVEN_HOME/bin/mvn" -f "$GH_HOME/core/pom.xml" -DskipTests clean install assembly:single
startMeasurement
done
fi
[Expanded from my comment...] The script file apparently has DOS-style line endings (i.e. carriage return followed by linefeed, instead of just linefeed). This confuses the shell greatly, since it sees the carriage return as part of the command. The giveaway is that first error message:
: not found.sh: 2: graphhopper.sh:
What's actually happened is it printed the error message "graphhopper.sh: 2: graphhopper.sh: ^M: not found" (where the ^M is actually a carriage return); when the terminal sees the ^M it goes back to the beginning of the line, and prints the end of the error message over top of the beginning.
One of the other effects this has is that the shell can't recognize keywords at the end of lines. When it sees a line like:
if [ ${OSM_FILE: -4} == ".pbf" ]; then^M
...it thinks then^M a regular command, not the end of the condition part of the if command, so it keeps looking for a then. But the else command seems to have some spaces at the end:
else ^M
...which means the shell does recognize the else keyword and get very confused about what it's doing in the middle of the condition part of the if.
So what can you do about it? There's almost certainly a command for it; I'm used to dos2unix, but apparently ubuntu doesn't have that, instead the "tofrodos" package includes the command fromdos (see here). Or, you can do it with perl:
perl -pi -e 's/\r//g' graphhopper.sh
Your text editor may also be able to save in unix (rather than DOS) format. Speaking of which, you should either switch your text editor to unix mode, or find a different text editor for scripting.
Remove the extra fi:
if [ ! -f "$OSM_FILE" ]; then
echo "ERROR couldn't download or extract OSM file $OSM_FILE ... exiting"
exit
# fi
else
echo "## using existing osm file $OSM_FILE"
fi
The variable OSM_FILE is not set to anything. This causes it to expand to a empty string, which causes the shell to think there are syntax errors in the if conditions.
Print out the value of OSM_FILE before use, and if it's empty, debug backwards.
A little history behind this - I'm trying to write a nagios plugin to detect if an nfs mount is unmounted and if a mount is stale, which is where I'm running into a problem.
What I'm trying to achieve is detecting if a mount is stale. The problem I'm trying to work around is the fact that a stale nfs handle causes any action on that directory to hang and timeout after 3-4 minutes. By forcing a timeout onto a stat command inside an nfs mounted directory with read, I should be able to work around that problem.
So I picked up this snippet somewhere, which works perfectly when run manually from the cli on an nfs client (where /www/logs/foo is a stale nfs mount)
$ read -t 2 < <(stat -t /www/logs/foo/*); echo $?
1
The problem comes when I try to incorporate this snippet into a script like so (snippet attached, full script attached at the end):
list_of_mounts=$(grep nfs /etc/fstab | grep -v ^# | awk '{print $2'} | xargs)
exitstatus $LINENO
for X in $list_of_mounts; do
AM_I_EXCLUDED=`echo " $* " | grep " $X " -q; echo $?`
if [ "$AM_I_EXCLUDED" -eq "0" ]; then
echo "" >> /dev/null
#check to see if mount is mounted according to /proc/mounts
elif [ ! `grep --quiet "$X " /proc/mounts; echo $?` -eq 0 ]; then
#mount is not mounted at all, add to list to remount
remount_list=`echo $remount_list $X`;
#now make sure its not stale
elif [ ! "`read -t 2 < <(stat -t $X/*) ; echo $?`" -eq "0" ]; then
stalemount_list=`echo $stalemount_list $X`
fi
Gives me this error:
/usr/lib64/nagios/plugins/check_nfs_mounts.sh: command substitution: line 46: syntax error near unexpected token `<'
/usr/lib64/nagios/plugins/check_nfs_mounts.sh: command substitution: line 46: `read -t 2 < <( '
/usr/lib64/nagios/plugins/check_nfs_mounts.sh: command substitution: line 46: syntax error near unexpected token `)'
/usr/lib64/nagios/plugins/check_nfs_mounts.sh: command substitution: line 46: ` ) ; echo $?'
/usr/lib64/nagios/plugins/check_nfs_mounts.sh: line 46: [: stat -t /www/logs/foo/*: integer expression expected
I was able to work around the syntax error by using " read -t 2<<< $(stat -t $X/)" instead of " read -t 2< <(stat -t $X/)", however stat no longer benefits from the timeout on read, which takes me back to the original problem.
While I'm open to new solutions, I'm also curious as to what behavior might be causing this shell vs script difference.
Full nagios check:
#!/bin/bash
usage() {
echo "
Usage:
check_nfs_mounts.sh
It just works.
Optional: include an argument to exclude that mount point
"
}
ok() {
echo "OK - $*"; exit 0
exit
}
warning() {
echo "WARNING - $*"; exit 1
exit
}
critical() {
echo "CRITICAL - $*"; exit 2
exit
}
unknown() {
echo "UNKNOWN - $*"; exit 3
exit
}
exitstatus() {
if [ ! "$?" -eq "0" ] ;
then unknown "Plugin failure - exit code not OK - error line $*"
fi
}
# Get Mounts
list_of_mounts=$(grep nfs /etc/fstab | grep -v ^# | awk '{print $2'} | xargs)
exitstatus $LINENO
for X in $list_of_mounts; do
AM_I_EXCLUDED=`echo " $* " | grep " $X " -q; echo $?`
if [ "$AM_I_EXCLUDED" -eq "0" ]; then
echo "" >> /dev/null
#check to see if mount is mounted according to /proc/mounts
elif [ ! `grep --quiet "$X " /proc/mounts; echo $?` -eq 0 ]; then
#mount is not mounted at all, add to list to remount
remount_list=`echo $remount_list $X`;
#now make sure its not stale
elif [ ! "`read -t 2 <<< $(stat -t $X/*) ; echo $?`" -eq "0" ]; then
stalemount_list=`echo $stalemount_list $X`
fi
done
#Make sure result is a number
if [ -n "$remount_list" ] && [ -n "$stalemount_list" ]; then
critical "Not mounted: $remount_list , Stale mounts: $stalemount_list"
elif [ -n "$remount_list" ] && [ -z "$stalemount_list"]; then
critical "Not mounted: $remount_list"
elif [ -n "$stalemount_list" ] && [ -n "$remount_list" ]; then
critical "Stale mount: $stalemount_list"
elif [ -z "$stalemount_list" ] && [ -z "$remount_list" ]; then
ok "All mounts mounted"
fi
You need to make sure your shebang specifies Bash:
#!/bin/bash
The reason for the error message is that on your system, Bash is symlinked to /bin/sh which is used when there's no shebang or when it's #!/bin/sh.
In this case, Bash is run as if you had started it with bash --posix which disables some non-POSIX features such as process substitution (<()), but confusingly not others such as here strings (<<<).
Change your shebang and you should be OK.
You can save the output of a subshell in this way:
$ read a < <(echo one)
$ echo $a
one
Or in this way (if you just want to process $a and forget it:
$ ( echo one; echo two) | (read a; echo $a)
one
The first variant will work only in bash. Bourne Shell (/bin/sh) does not support this syntax. May be that is the reason why you get the error message. May be you script is interpreted by /bin/sh not by /bin/bash