As you gain experience tracking down bugs, you will discover that bugs are often not where you first expect to find them. Use set -x to turn tracing on and set +x to turn tracing off. Many shells implement these as built-ins, as Wikipedia says. –Palec Feb 9 '14 at 23:28 2 @Wolph By writing partially wrong I meant two things. Here are a couple of techniques that you will find useful: Isolate blocks of code by "commenting them out." This trick involves putting comment characters at the beginning of lines of http://onlinetvsoftware.net/bash-script/bash-script-tar-error.php
Kenhelm View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by Kenhelm 03-10-2014, 04:23 AM #6 postcd Member Registered: Oct 2013 Posts: 394 It also explains the rest of the error message we received. Using Map to convert Feet + Inches to Inches in a List of Lists How to deal with a very weak student? Thanks for the explanation it's helped a lot and will be very useful to know in the future too. –kemra102 Aug 18 '12 at 12:25 Let me add that
So sayeth the Shepherd Finding a file starting with '-' dash What type of sequences are escape sequences starting with "\033]" How to indicate you are going straight? What the shell was trying to tell us was that there was only one item and there should have been a unary operator (like "!") that only operates on a single up vote 2 down vote favorite I'm very new to shell scripting and learning it. W.
What kind of error is here? Can a creature benefit from differently typed speed bonuses all named fast movement? This brings up an important thing to remember when you are writing your scripts. Bash Script Error Command Not Found How to increase the population growth of the human race Integral using residue theorem complex analysis Do COB LEDs usually need electrically insulating from the heatsink?
more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. Missing quotes Edit line 6 to remove the trailing quote from the end of the line: echo "Number equals 1 and run the script again. s.verma View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by s.verma View Blog 03-08-2014, 10:13 AM #5 Kenhelm Member Registered: Mar 2008
Equivalent to case "$str" in *[aeiou]*) echo Yes;; *) echo No;; esac –glenn jackman Nov 6 '15 at 19:18 | show 1 more comment up vote 3 down vote Even though Bash Script Error Check Skeletal formula for carbon with two double bonds Which requires more energy: walking 1 km or cycling 1 km at the same speed? A common problem will be that you will make a false assumption about the performance of your program. With the right shopt, however, you instead get: backup-2014-whatever* = $i With the * being part of the comparison.
From this we can determine that the error is occurring on line 5 not line 3. check over here How to map and sum a list fast? Is my workplace warning for texting my boss's private phone at night justified? Thank you in advance! Remove advertisements Sponsored Links hakermania View Public Profile Find all posts by hakermania
asked 6 years ago viewed 72312 times active 3 years ago Linked 21 Unexpected operator error 0 bash “[: y:” unexpected operator 2 Linux Script Unexpected end of file error 1 What is the use of the 'X' you placed there? It is in syntax of the [ command parameters, which is not sh’s business. http://onlinetvsoftware.net/bash-script/bash-script-bus-error.php Unfortunately I didn't understand what you did in here: Code: if diff -q /home/alex/Desktop/lol /home/alex/Desktop/lol1 >/dev/null 2>&1 echo "match" else echo "mismatch" fi Remove advertisements Sponsored Links hakermania
Still getting the error. –soufrk Sep 1 at 6:58 @soufrk Is it sonarqube.sh or sonar.sh? Bash Script Error Output Please visit this page to clear all LQ-related cookies. What type of sequences are escape sequences starting with "\033]" Train ride from Copenhagen to Malmo Is there a good way to get from Levoča to Lviv?
Can filling up a 75 gallon water heater tank without opening a faucet cause damage? The shebang line must be the very first thing in the file. There are problems with for file in * because files may include whitespace. Bash Script Error Log This leads beginners to false conclusion that Bash solves their problems.
Browse other questions tagged bash shell ubuntu shell-script or ask your own question. share|improve this answer edited Feb 22 '14 at 18:56 NoobEditor 9,41432653 answered Jan 6 '10 at 6:00 R Samuel Klatchko 55.3k791157 1 Well, numeric or string comparison doesn't really matter Having a problem logging in? http://onlinetvsoftware.net/bash-script/bash-script-error-127.php So, in these scripts you will not encounter the 'x-trick' as it's not needed.
And anyway, if you can't solve the problem with the information in this thread, ask a new question with the full content of the script and copy-paste the full error message(s). Verbs of buttons on websites Adopt A Jet/Book My girlfriend has mentioned disowning her 14 y/o transgender daughter On THE other hand or on another hand? So you can say: test -f "/bin/bash" && echo "This system has a bash shell" or [ -f "/bin/bash" ] && echo "This system has a bash shell" ... just don't use ls -l.
These errors can be a real pain to find in a long script. Number does not equal 1 As you can see, bash displayed an error message when we ran the script. I would use Glenn's advice, more or less, and do it this way: command ls -1 | while read file; do if [ x"$file" = x"$filename" ]]; then echo Do Work Subtraction with a negative result What does the "Phi" sign stand for in musical notation?
If not, why? Well, you can, but if the fileglob results in more than one match, you will get both of them, in which case the "[" program (yes, it's a program) will attempt thanks!!! –normalUser Sep 29 '15 at 9:19 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign Use echo commands to verify your assumptions.
I can still move the shebang of course, but that doesn't really explain as to why it works when you don’t sudo the whole script. –kemra102 Aug 18 '12 at 11:50 Kartheg UNIX for Dummies Questions & Answers 14 09-11-2009 04:44 PM syntax error: `-a' unexpected operator/operand in IF dba.admin2008 Shell Programming and Scripting 4 11-14-2008 04:16 PM comparing 2 strings [email protected] asked 11 months ago viewed 839 times active 5 months ago Linked 4 bash [[ = ]] behaviour Related 31Shell script fails: Syntax error: “(” unexpected1/shell-script: syntax error near unexpected token The second type displays the value of a variable (or variables) used in a calculation or test.
My home country claims I am a dual national of another country, the country in question does not. American English: are [ə] and [ʌ] different phonemes? Were slings used for throwing hand grenades?